Okay, just helped a buddy swap a new engine core (block and head - D15B2, if
memory serves) into an '88 Civic with dual-point PGM-FI. Kept the original
intake and throttle body, all wiring appears to be back where it belongs.
Engine was running before, but there was a big nasty crack down the block right
behind the #4 cylinder.

We're getting spark and compression, but no fuel into the cylinders - plugs come
out completely dry even after much cranking. Fuel pump is working, and there's
lots of pressure both before and after the forward fuel filter. Haven't checked
where the fuel line bolts to the throttle body, but I don't expect there's a
problem there either.

I'm guessing something is preventing the injectors from working (again, this is
the same intake and throttle body that was in the car and working previously).
Didn't have any time to troubleshoot it tonight, so we're back at it tomorrow
evening, so I thought I'd ask here for some pointers on where to check, what to
test, how to determine where the problem may lie - any wires to check for signal
or voltage, that sort of thing.

Thanks in advance!

 

Matt Ion <soundy@moltenimage.com> wrote in
newsUzEg.405746$iF6.393198@pd7tw2no:

> Okay, just helped a buddy swap a new engine core (block and head -
> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
> Kept the original intake and throttle body, all wiring appears to be
> back where it belongs. Engine was running before, but there was a big
> nasty crack down the block right behind the #4 cylinder.
>
> We're getting spark and compression, but no fuel into the cylinders -
> plugs come out completely dry even after much cranking. Fuel pump is
> working, and there's lots of pressure both before and after the
> forward fuel filter. Haven't checked where the fuel line bolts to the
> throttle body, but I don't expect there's a problem there either.
>
> I'm guessing something is preventing the injectors from working
> (again, this is the same intake and throttle body that was in the car
> and working previously). Didn't have any time to troubleshoot it
> tonight, so we're back at it tomorrow evening, so I thought I'd ask
> here for some pointers on where to check, what to test, how to
> determine where the problem may lie - any wires to check for signal
> or voltage, that sort of thing.
>


Does the Check Engine light come on for two seconds when the key is first
turned to "II", then go off again?

Any codes stored in the ECU?

Did you reconnect the ECU ground at the thermostat?

At the bottom injector, find out which of the two wires is "hot" with the
key at "II" (the other one is grounded by the ECU when it wants the
injector to turn on). Remove the connector, and carefully hook up a
temporary connection from the hot wire to the hot side of the injector,
then ground the other side of the injector to the block or some body
ground. Does the injector now spray fuel?

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

 

Matt Ion <soundy@moltenimage.com> wrote in
newsUzEg.405746$iF6.393198@pd7tw2no:

> Okay, just helped a buddy swap a new engine core (block and head -
> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
> Kept the original intake and throttle body, all wiring appears to be
> back where it belongs. Engine was running before, but there was a big
> nasty crack down the block right behind the #4 cylinder.
>
> We're getting spark and compression, but no fuel into the cylinders -
> plugs come out completely dry even after much cranking. Fuel pump is
> working, and there's lots of pressure both before and after the
> forward fuel filter. Haven't checked where the fuel line bolts to the
> throttle body, but I don't expect there's a problem there either.
>
> I'm guessing something is preventing the injectors from working
> (again, this is the same intake and throttle body that was in the car
> and working previously). Didn't have any time to troubleshoot it
> tonight, so we're back at it tomorrow evening, so I thought I'd ask
> here for some pointers on where to check, what to test, how to
> determine where the problem may lie - any wires to check for signal
> or voltage, that sort of thing.
>


Does the Check Engine light come on for two seconds when the key is first
turned to "II", then go off again?

Any codes stored in the ECU?

Did you reconnect the ECU ground at the thermostat?

At the bottom injector, find out which of the two wires is "hot" with the
key at "II" (the other one is grounded by the ECU when it wants the
injector to turn on). Remove the connector, and carefully hook up a
temporary connection from the hot wire to the hot side of the injector,
then ground the other side of the injector to the block or some body
ground. Does the injector now spray fuel?

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

 

Matt Ion <soundy@moltenimage.com> wrote in
newsUzEg.405746$iF6.393198@pd7tw2no:

> Okay, just helped a buddy swap a new engine core (block and head -
> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
> Kept the original intake and throttle body, all wiring appears to be
> back where it belongs. Engine was running before, but there was a big
> nasty crack down the block right behind the #4 cylinder.
>
> We're getting spark and compression, but no fuel into the cylinders -
> plugs come out completely dry even after much cranking. Fuel pump is
> working, and there's lots of pressure both before and after the
> forward fuel filter. Haven't checked where the fuel line bolts to the
> throttle body, but I don't expect there's a problem there either.
>
> I'm guessing something is preventing the injectors from working
> (again, this is the same intake and throttle body that was in the car
> and working previously). Didn't have any time to troubleshoot it
> tonight, so we're back at it tomorrow evening, so I thought I'd ask
> here for some pointers on where to check, what to test, how to
> determine where the problem may lie - any wires to check for signal
> or voltage, that sort of thing.
>


Does the Check Engine light come on for two seconds when the key is first
turned to "II", then go off again?

Any codes stored in the ECU?

Did you reconnect the ECU ground at the thermostat?

At the bottom injector, find out which of the two wires is "hot" with the
key at "II" (the other one is grounded by the ECU when it wants the
injector to turn on). Remove the connector, and carefully hook up a
temporary connection from the hot wire to the hot side of the injector,
then ground the other side of the injector to the block or some body
ground. Does the injector now spray fuel?

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

 

TeGGeR® wrote:
> Matt Ion <soundy@moltenimage.com> wrote in
> newsUzEg.405746$iF6.393198@pd7tw2no:
>
>> Okay, just helped a buddy swap a new engine core (block and head -
>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>> Kept the original intake and throttle body, all wiring appears to be
>> back where it belongs. Engine was running before, but there was a big
>> nasty crack down the block right behind the #4 cylinder.
>>
>> We're getting spark and compression, but no fuel into the cylinders -
>> plugs come out completely dry even after much cranking. Fuel pump is
>> working, and there's lots of pressure both before and after the
>> forward fuel filter. Haven't checked where the fuel line bolts to the
>> throttle body, but I don't expect there's a problem there either.
>>
>> I'm guessing something is preventing the injectors from working
>> (again, this is the same intake and throttle body that was in the car
>> and working previously). Didn't have any time to troubleshoot it
>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>> here for some pointers on where to check, what to test, how to
>> determine where the problem may lie - any wires to check for signal
>> or voltage, that sort of thing.
>>
>
>
> Does the Check Engine light come on for two seconds when the key is
> first turned to "II", then go off again?
>
> Any codes stored in the ECU?
>
> Did you reconnect the ECU ground at the thermostat?
>
> At the bottom injector, find out which of the two wires is "hot" with
> the key at "II" (the other one is grounded by the ECU when it wants the
> injector to turn on).

The connector will need to be removed to do this since if the ECU is not
actively grounding the ground side, the voltage applied to the 'hot' side
will appear at the 'cold' side as well if still connected to the injector.

> Remove the connector, and carefully hook up a
> temporary connection from the hot wire to the hot side of the injector,
> then ground the other side of the injector to the block or some body
> ground. Does the injector now spray fuel?


--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
Dorset UK Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.

 

TeGGeR® wrote:
> Matt Ion <soundy@moltenimage.com> wrote in
> newsUzEg.405746$iF6.393198@pd7tw2no:
>
>> Okay, just helped a buddy swap a new engine core (block and head -
>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>> Kept the original intake and throttle body, all wiring appears to be
>> back where it belongs. Engine was running before, but there was a big
>> nasty crack down the block right behind the #4 cylinder.
>>
>> We're getting spark and compression, but no fuel into the cylinders -
>> plugs come out completely dry even after much cranking. Fuel pump is
>> working, and there's lots of pressure both before and after the
>> forward fuel filter. Haven't checked where the fuel line bolts to the
>> throttle body, but I don't expect there's a problem there either.
>>
>> I'm guessing something is preventing the injectors from working
>> (again, this is the same intake and throttle body that was in the car
>> and working previously). Didn't have any time to troubleshoot it
>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>> here for some pointers on where to check, what to test, how to
>> determine where the problem may lie - any wires to check for signal
>> or voltage, that sort of thing.
>>
>
>
> Does the Check Engine light come on for two seconds when the key is
> first turned to "II", then go off again?
>
> Any codes stored in the ECU?
>
> Did you reconnect the ECU ground at the thermostat?
>
> At the bottom injector, find out which of the two wires is "hot" with
> the key at "II" (the other one is grounded by the ECU when it wants the
> injector to turn on).

The connector will need to be removed to do this since if the ECU is not
actively grounding the ground side, the voltage applied to the 'hot' side
will appear at the 'cold' side as well if still connected to the injector.

> Remove the connector, and carefully hook up a
> temporary connection from the hot wire to the hot side of the injector,
> then ground the other side of the injector to the block or some body
> ground. Does the injector now spray fuel?


--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
Dorset UK Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.

 

TeGGeR® wrote:
> Matt Ion <soundy@moltenimage.com> wrote in
> newsUzEg.405746$iF6.393198@pd7tw2no:
>
>> Okay, just helped a buddy swap a new engine core (block and head -
>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>> Kept the original intake and throttle body, all wiring appears to be
>> back where it belongs. Engine was running before, but there was a big
>> nasty crack down the block right behind the #4 cylinder.
>>
>> We're getting spark and compression, but no fuel into the cylinders -
>> plugs come out completely dry even after much cranking. Fuel pump is
>> working, and there's lots of pressure both before and after the
>> forward fuel filter. Haven't checked where the fuel line bolts to the
>> throttle body, but I don't expect there's a problem there either.
>>
>> I'm guessing something is preventing the injectors from working
>> (again, this is the same intake and throttle body that was in the car
>> and working previously). Didn't have any time to troubleshoot it
>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>> here for some pointers on where to check, what to test, how to
>> determine where the problem may lie - any wires to check for signal
>> or voltage, that sort of thing.
>>
>
>
> Does the Check Engine light come on for two seconds when the key is
> first turned to "II", then go off again?
>
> Any codes stored in the ECU?
>
> Did you reconnect the ECU ground at the thermostat?
>
> At the bottom injector, find out which of the two wires is "hot" with
> the key at "II" (the other one is grounded by the ECU when it wants the
> injector to turn on).

The connector will need to be removed to do this since if the ECU is not
actively grounding the ground side, the voltage applied to the 'hot' side
will appear at the 'cold' side as well if still connected to the injector.

> Remove the connector, and carefully hook up a
> temporary connection from the hot wire to the hot side of the injector,
> then ground the other side of the injector to the block or some body
> ground. Does the injector now spray fuel?


--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
Dorset UK Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.

 

Graham W wrote:
>
> TeGGeR® wrote:
>
>>Matt Ion <soundy@moltenimage.com> wrote in
>>newsUzEg.405746$iF6.393198@pd7tw2no:
>>
>>
>>>Okay, just helped a buddy swap a new engine core (block and head -
>>>D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>>>Kept the original intake and throttle body, all wiring appears to be
>>>back where it belongs. Engine was running before, but there was a big
>>>nasty crack down the block right behind the #4 cylinder.
>>>
>>>We're getting spark and compression, but no fuel into the cylinders -
>>>plugs come out completely dry even after much cranking. Fuel pump is
>>>working, and there's lots of pressure both before and after the
>>>forward fuel filter. Haven't checked where the fuel line bolts to the
>>>throttle body, but I don't expect there's a problem there either.
>>>
>>>I'm guessing something is preventing the injectors from working
>>>(again, this is the same intake and throttle body that was in the car
>>>and working previously). Didn't have any time to troubleshoot it
>>>tonight, so we're back at it tomorrow evening, so I thought I'd ask
>>>here for some pointers on where to check, what to test, how to
>>>determine where the problem may lie - any wires to check for signal
>>>or voltage, that sort of thing.
>>>
>>
>>
>>Does the Check Engine light come on for two seconds when the key is
>>first turned to "II", then go off again?
>>
>>Any codes stored in the ECU?
>>
>>Did you reconnect the ECU ground at the thermostat?
>>
>>At the bottom injector, find out which of the two wires is "hot" with
>>the key at "II" (the other one is grounded by the ECU when it wants the
>>injector to turn on).
>
>
> The connector will need to be removed to do this since if the ECU is not
> actively grounding the ground side, the voltage applied to the 'hot' side
> will appear at the 'cold' side as well if still connected to the injector.
>
>
>>Remove the connector, and carefully hook up a
>>temporary connection from the hot wire to the hot side of the injector,
>>then ground the other side of the injector to the block or some body
>>ground. Does the injector now spray fuel?
>
>
>
> --
> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
> WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
> Dorset UK Info, Meeting Dates, Sites & Maps
> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>

Thanks, guys... I'll take these with me to the shop. I didn't do any of the
wiring re-connects so I can't guarantee anything just yet

 

Graham W wrote:
>
> TeGGeR® wrote:
>
>>Matt Ion <soundy@moltenimage.com> wrote in
>>newsUzEg.405746$iF6.393198@pd7tw2no:
>>
>>
>>>Okay, just helped a buddy swap a new engine core (block and head -
>>>D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>>>Kept the original intake and throttle body, all wiring appears to be
>>>back where it belongs. Engine was running before, but there was a big
>>>nasty crack down the block right behind the #4 cylinder.
>>>
>>>We're getting spark and compression, but no fuel into the cylinders -
>>>plugs come out completely dry even after much cranking. Fuel pump is
>>>working, and there's lots of pressure both before and after the
>>>forward fuel filter. Haven't checked where the fuel line bolts to the
>>>throttle body, but I don't expect there's a problem there either.
>>>
>>>I'm guessing something is preventing the injectors from working
>>>(again, this is the same intake and throttle body that was in the car
>>>and working previously). Didn't have any time to troubleshoot it
>>>tonight, so we're back at it tomorrow evening, so I thought I'd ask
>>>here for some pointers on where to check, what to test, how to
>>>determine where the problem may lie - any wires to check for signal
>>>or voltage, that sort of thing.
>>>
>>
>>
>>Does the Check Engine light come on for two seconds when the key is
>>first turned to "II", then go off again?
>>
>>Any codes stored in the ECU?
>>
>>Did you reconnect the ECU ground at the thermostat?
>>
>>At the bottom injector, find out which of the two wires is "hot" with
>>the key at "II" (the other one is grounded by the ECU when it wants the
>>injector to turn on).
>
>
> The connector will need to be removed to do this since if the ECU is not
> actively grounding the ground side, the voltage applied to the 'hot' side
> will appear at the 'cold' side as well if still connected to the injector.
>
>
>>Remove the connector, and carefully hook up a
>>temporary connection from the hot wire to the hot side of the injector,
>>then ground the other side of the injector to the block or some body
>>ground. Does the injector now spray fuel?
>
>
>
> --
> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
> WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
> Dorset UK Info, Meeting Dates, Sites & Maps
> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>

Thanks, guys... I'll take these with me to the shop. I didn't do any of the
wiring re-connects so I can't guarantee anything just yet

 

Graham W wrote:
>
> TeGGeR® wrote:
>
>>Matt Ion <soundy@moltenimage.com> wrote in
>>newsUzEg.405746$iF6.393198@pd7tw2no:
>>
>>
>>>Okay, just helped a buddy swap a new engine core (block and head -
>>>D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>>>Kept the original intake and throttle body, all wiring appears to be
>>>back where it belongs. Engine was running before, but there was a big
>>>nasty crack down the block right behind the #4 cylinder.
>>>
>>>We're getting spark and compression, but no fuel into the cylinders -
>>>plugs come out completely dry even after much cranking. Fuel pump is
>>>working, and there's lots of pressure both before and after the
>>>forward fuel filter. Haven't checked where the fuel line bolts to the
>>>throttle body, but I don't expect there's a problem there either.
>>>
>>>I'm guessing something is preventing the injectors from working
>>>(again, this is the same intake and throttle body that was in the car
>>>and working previously). Didn't have any time to troubleshoot it
>>>tonight, so we're back at it tomorrow evening, so I thought I'd ask
>>>here for some pointers on where to check, what to test, how to
>>>determine where the problem may lie - any wires to check for signal
>>>or voltage, that sort of thing.
>>>
>>
>>
>>Does the Check Engine light come on for two seconds when the key is
>>first turned to "II", then go off again?
>>
>>Any codes stored in the ECU?
>>
>>Did you reconnect the ECU ground at the thermostat?
>>
>>At the bottom injector, find out which of the two wires is "hot" with
>>the key at "II" (the other one is grounded by the ECU when it wants the
>>injector to turn on).
>
>
> The connector will need to be removed to do this since if the ECU is not
> actively grounding the ground side, the voltage applied to the 'hot' side
> will appear at the 'cold' side as well if still connected to the injector.
>
>
>>Remove the connector, and carefully hook up a
>>temporary connection from the hot wire to the hot side of the injector,
>>then ground the other side of the injector to the block or some body
>>ground. Does the injector now spray fuel?
>
>
>
> --
> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
> WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
> Dorset UK Info, Meeting Dates, Sites & Maps
> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>

Thanks, guys... I'll take these with me to the shop. I didn't do any of the
wiring re-connects so I can't guarantee anything just yet

 

Matt Ion wrote:
> Graham W wrote:
>
>>
>> TeGGeR® wrote:
>>
>>> Matt Ion <soundy@moltenimage.com> wrote in
>>> newsUzEg.405746$iF6.393198@pd7tw2no:
>>>
>>>
>>>> Okay, just helped a buddy swap a new engine core (block and head -
>>>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>>>> Kept the original intake and throttle body, all wiring appears to be
>>>> back where it belongs. Engine was running before, but there was a big
>>>> nasty crack down the block right behind the #4 cylinder.
>>>>
>>>> We're getting spark and compression, but no fuel into the cylinders -
>>>> plugs come out completely dry even after much cranking. Fuel pump is
>>>> working, and there's lots of pressure both before and after the
>>>> forward fuel filter. Haven't checked where the fuel line bolts to the
>>>> throttle body, but I don't expect there's a problem there either.
>>>>
>>>> I'm guessing something is preventing the injectors from working
>>>> (again, this is the same intake and throttle body that was in the car
>>>> and working previously). Didn't have any time to troubleshoot it
>>>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>>>> here for some pointers on where to check, what to test, how to
>>>> determine where the problem may lie - any wires to check for signal
>>>> or voltage, that sort of thing.
>>>>
>>>
>>>
>>> Does the Check Engine light come on for two seconds when the key is
>>> first turned to "II", then go off again?
>>>
>>> Any codes stored in the ECU?
>>>
>>> Did you reconnect the ECU ground at the thermostat?
>>>
>>> At the bottom injector, find out which of the two wires is "hot" with
>>> the key at "II" (the other one is grounded by the ECU when it wants the
>>> injector to turn on).
>>
>>
>>
>> The connector will need to be removed to do this since if the ECU is not
>> actively grounding the ground side, the voltage applied to the 'hot' side
>> will appear at the 'cold' side as well if still connected to the
>> injector.
>>
>>
>>> Remove the connector, and carefully hook up a
>>> temporary connection from the hot wire to the hot side of the injector,
>>> then ground the other side of the injector to the block or some body
>>> ground. Does the injector now spray fuel?
>>
>>
>>
>>
>> --
>> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
>> WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
>> Dorset UK Info, Meeting Dates, Sites & Maps
>> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>>
>
> Thanks, guys... I'll take these with me to the shop. I didn't do any of
> the wiring re-connects so I can't guarantee anything just yet

Okay, buddy's testing it (I'm not at the shop, home with a tweaked back muscle
today)... he says there's no power on the injector wire. It does appear to be
grounded to the thermostat housing (he's checking if it's got a GOOD ground) but
he reads no power coming in.

He notes there's a cut read wire hanging under the intake, coming out of a
bundle along with one wire for the temp sending unit, and one for the oil
pressure sending unit. There's no indication where it should go.

And now he says it looks like the ground might be bad, so he's gonna fix that
and try again. Meanwhile, he thanks you for your help as well

He's GOT a Haynes manual for this thing, which he can't find... i'm SO much more
useful with a good wiring schematic in front of me

 

Matt Ion wrote:
> Graham W wrote:
>
>>
>> TeGGeR® wrote:
>>
>>> Matt Ion <soundy@moltenimage.com> wrote in
>>> newsUzEg.405746$iF6.393198@pd7tw2no:
>>>
>>>
>>>> Okay, just helped a buddy swap a new engine core (block and head -
>>>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>>>> Kept the original intake and throttle body, all wiring appears to be
>>>> back where it belongs. Engine was running before, but there was a big
>>>> nasty crack down the block right behind the #4 cylinder.
>>>>
>>>> We're getting spark and compression, but no fuel into the cylinders -
>>>> plugs come out completely dry even after much cranking. Fuel pump is
>>>> working, and there's lots of pressure both before and after the
>>>> forward fuel filter. Haven't checked where the fuel line bolts to the
>>>> throttle body, but I don't expect there's a problem there either.
>>>>
>>>> I'm guessing something is preventing the injectors from working
>>>> (again, this is the same intake and throttle body that was in the car
>>>> and working previously). Didn't have any time to troubleshoot it
>>>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>>>> here for some pointers on where to check, what to test, how to
>>>> determine where the problem may lie - any wires to check for signal
>>>> or voltage, that sort of thing.
>>>>
>>>
>>>
>>> Does the Check Engine light come on for two seconds when the key is
>>> first turned to "II", then go off again?
>>>
>>> Any codes stored in the ECU?
>>>
>>> Did you reconnect the ECU ground at the thermostat?
>>>
>>> At the bottom injector, find out which of the two wires is "hot" with
>>> the key at "II" (the other one is grounded by the ECU when it wants the
>>> injector to turn on).
>>
>>
>>
>> The connector will need to be removed to do this since if the ECU is not
>> actively grounding the ground side, the voltage applied to the 'hot' side
>> will appear at the 'cold' side as well if still connected to the
>> injector.
>>
>>
>>> Remove the connector, and carefully hook up a
>>> temporary connection from the hot wire to the hot side of the injector,
>>> then ground the other side of the injector to the block or some body
>>> ground. Does the injector now spray fuel?
>>
>>
>>
>>
>> --
>> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
>> WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
>> Dorset UK Info, Meeting Dates, Sites & Maps
>> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>>
>
> Thanks, guys... I'll take these with me to the shop. I didn't do any of
> the wiring re-connects so I can't guarantee anything just yet

Okay, buddy's testing it (I'm not at the shop, home with a tweaked back muscle
today)... he says there's no power on the injector wire. It does appear to be
grounded to the thermostat housing (he's checking if it's got a GOOD ground) but
he reads no power coming in.

He notes there's a cut read wire hanging under the intake, coming out of a
bundle along with one wire for the temp sending unit, and one for the oil
pressure sending unit. There's no indication where it should go.

And now he says it looks like the ground might be bad, so he's gonna fix that
and try again. Meanwhile, he thanks you for your help as well

He's GOT a Haynes manual for this thing, which he can't find... i'm SO much more
useful with a good wiring schematic in front of me

 

Matt Ion wrote:
> Graham W wrote:
>
>>
>> TeGGeR® wrote:
>>
>>> Matt Ion <soundy@moltenimage.com> wrote in
>>> newsUzEg.405746$iF6.393198@pd7tw2no:
>>>
>>>
>>>> Okay, just helped a buddy swap a new engine core (block and head -
>>>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>>>> Kept the original intake and throttle body, all wiring appears to be
>>>> back where it belongs. Engine was running before, but there was a big
>>>> nasty crack down the block right behind the #4 cylinder.
>>>>
>>>> We're getting spark and compression, but no fuel into the cylinders -
>>>> plugs come out completely dry even after much cranking. Fuel pump is
>>>> working, and there's lots of pressure both before and after the
>>>> forward fuel filter. Haven't checked where the fuel line bolts to the
>>>> throttle body, but I don't expect there's a problem there either.
>>>>
>>>> I'm guessing something is preventing the injectors from working
>>>> (again, this is the same intake and throttle body that was in the car
>>>> and working previously). Didn't have any time to troubleshoot it
>>>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>>>> here for some pointers on where to check, what to test, how to
>>>> determine where the problem may lie - any wires to check for signal
>>>> or voltage, that sort of thing.
>>>>
>>>
>>>
>>> Does the Check Engine light come on for two seconds when the key is
>>> first turned to "II", then go off again?
>>>
>>> Any codes stored in the ECU?
>>>
>>> Did you reconnect the ECU ground at the thermostat?
>>>
>>> At the bottom injector, find out which of the two wires is "hot" with
>>> the key at "II" (the other one is grounded by the ECU when it wants the
>>> injector to turn on).
>>
>>
>>
>> The connector will need to be removed to do this since if the ECU is not
>> actively grounding the ground side, the voltage applied to the 'hot' side
>> will appear at the 'cold' side as well if still connected to the
>> injector.
>>
>>
>>> Remove the connector, and carefully hook up a
>>> temporary connection from the hot wire to the hot side of the injector,
>>> then ground the other side of the injector to the block or some body
>>> ground. Does the injector now spray fuel?
>>
>>
>>
>>
>> --
>> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
>> WIMBORNE http://www.wessex-astro.org.uk/ Wessex Astro Society's Website
>> Dorset UK Info, Meeting Dates, Sites & Maps
>> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>>
>
> Thanks, guys... I'll take these with me to the shop. I didn't do any of
> the wiring re-connects so I can't guarantee anything just yet

Okay, buddy's testing it (I'm not at the shop, home with a tweaked back muscle
today)... he says there's no power on the injector wire. It does appear to be
grounded to the thermostat housing (he's checking if it's got a GOOD ground) but
he reads no power coming in.

He notes there's a cut read wire hanging under the intake, coming out of a
bundle along with one wire for the temp sending unit, and one for the oil
pressure sending unit. There's no indication where it should go.

And now he says it looks like the ground might be bad, so he's gonna fix that
and try again. Meanwhile, he thanks you for your help as well

He's GOT a Haynes manual for this thing, which he can't find... i'm SO much more
useful with a good wiring schematic in front of me

 

Matt Ion <soundy@moltenimage.com> wrote in
news:vINEg.420523$IK3.280117@pd7tw1no:


>
> He's GOT a Haynes manual for this thing, which he can't find... i'm SO
> much more useful with a good wiring schematic in front of me
>
>


Yeah? Then check here:
<http://search.ebscohost.com/Login.aspx?lp=login.asp&ref=&authtype=ip,uid>

log in with
username: lib
password: access

Click Auto Repair Reference Center from the menu at left.
Navigate to your car. There are wiring diagrams.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

 

Matt Ion <soundy@moltenimage.com> wrote in
news:vINEg.420523$IK3.280117@pd7tw1no:


>
> He's GOT a Haynes manual for this thing, which he can't find... i'm SO
> much more useful with a good wiring schematic in front of me
>
>


Yeah? Then check here:
<http://search.ebscohost.com/Login.aspx?lp=login.asp&ref=&authtype=ip,uid>

log in with
username: lib
password: access

Click Auto Repair Reference Center from the menu at left.
Navigate to your car. There are wiring diagrams.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/