benjaminjones1@gmail.com wrote in
news:1159226632.562317.230410@m73g2000cwd.googlegr oups.com:

>
> TeGGeR® wrote:

>>
>> The code is P0131, which according to Honda is:
>> Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Circuit Low
>> Voltage
>>
>> The sensor between the exhaust manifold and the cat is returning
>> voltage lower than it should be sending. If the wiring or connector
>> is not damaged or corroded, it sounds like you need a new oxygen
>> sensor.
>>
>> You have not indicated 4-cylinder or V6. If a V6, this is the sensor
>> attached to the front bank.
>
>
>
> Is there anyway that the O2 problem might be a result of my incorrect
> valve adjustment b/c it happened soon afterwards?



Highly unlikely. BUT...

1) The correct procedure for any MIL illumination with a new code is to
turn the light off, then see if it later comes back on again with the
same code. Was that done? Many errors are transient and do not recur.
2) You may wish to check with your dealer and see if there are any TSBs
involving a P0131 code on your VIN number.



> If not should I be
> concerned with any other problems that might come after driving with
> the incorrect valve adjustment for a month? My Honda is a 4-cylinder.
>


Does the car run fine now? If so, you're OK. The only real danger I can
see is the possibility of a burnt valve. If that were the case, a
compression test would identify that.



--
TeGGeR®

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

 

90,000 miles (original o2 i assume)? Yeah, it's time for an o2 to fail. I
don't run a Firestone, but I have employees who have worked there. They use
the same 3-step induction cleaning setup that nearly every major chain in
America uses (either Gumout of Run-Rite). No silicone involved.

J

N.E.Ohio Bob wrote:
>> Incorrect Valve Adjustment Fallout...
>
>> I need to know if the O2 error could be contributed to the incorrect
>> vale adjustment (excess vibrations) and if there is anything else I
>> should be looking out for because of the incorrect work.
>
> Betcha somebody used a silicone lube or cleaner on the intake system
>and it got on the end of the oxygen sensor and corrupted it. bob

 

90,000 miles (original o2 i assume)? Yeah, it's time for an o2 to fail. I
don't run a Firestone, but I have employees who have worked there. They use
the same 3-step induction cleaning setup that nearly every major chain in
America uses (either Gumout of Run-Rite). No silicone involved.

J

N.E.Ohio Bob wrote:
>> Incorrect Valve Adjustment Fallout...
>
>> I need to know if the O2 error could be contributed to the incorrect
>> vale adjustment (excess vibrations) and if there is anything else I
>> should be looking out for because of the incorrect work.
>
> Betcha somebody used a silicone lube or cleaner on the intake system
>and it got on the end of the oxygen sensor and corrupted it. bob

 

90,000 miles (original o2 i assume)? Yeah, it's time for an o2 to fail. I
don't run a Firestone, but I have employees who have worked there. They use
the same 3-step induction cleaning setup that nearly every major chain in
America uses (either Gumout of Run-Rite). No silicone involved.

J

N.E.Ohio Bob wrote:
>> Incorrect Valve Adjustment Fallout...
>
>> I need to know if the O2 error could be contributed to the incorrect
>> vale adjustment (excess vibrations) and if there is anything else I
>> should be looking out for because of the incorrect work.
>
> Betcha somebody used a silicone lube or cleaner on the intake system
>and it got on the end of the oxygen sensor and corrupted it. bob

 

benjaminjones1@gmail.com wrote:

> Incorrect Valve Adjustment Fallout...
>
> I recently had my 90k service performed on my Honda Civic EX 2000 at a
> Firestone Complete Auto Care. This included spark plug replacement,
> ignition wires replacement, fuel system tune up, valve adjustment, etc.

What's a "fuel system tune up"? I hope you're not referring to an
injector flush, which is usually a waste of money and possibly a risk
(injector coil insulation can be dissolved). Many bad shops flush
injectors unnecessarily.

Doesn't 90K on a Honda mean a timing belt change is due? Sometimes
they're installed off by 1 tooth or with too much tension, and this can
cause rough running. Hondas can also be very particular about ignition
parts, so don't install magnetic supression wires (very low resistance)
in place of regular resistor wire or spark plugs that aren't NGK brand.
Hondas don't like plugs that aren't NGK, no matter what the
substitution books say. The oxygen sensor error code may be due to the
rough running.

Some Honda factory manuals can be viewed at no charge at Honda's
British web site:

www.honda.co.uk/car/owner/workshop.html

Valve adjustment is done cold, which is unusual for valve trains with
rocker arms (common for those that are adjusted with disks), and
perhaps the Firestone mechanic didn't know this. But since the car was
taken to a Honda dealer, I assume they checked the valves (ask about
this).

Use chain stores like Firestone, Sears, Pep Boys, etc., only for simple
maintenance and repairs, like oil changes, and maybe brakes and wheel
alignments. They tend to be bad for any diagnoses or service
procedures that aren't almost completely standard. I've had chains
insist that cars had no fuel or emissions systems problems because the
car's computer gave no error codes, so they'd change the fuel filter,
do a tune up, or flush the injectors without making any improvements,
but then more knowledgeable mechanics would quickly notice abnormal
readings of the computer's data stream.

 

benjaminjones1@gmail.com wrote:

> Incorrect Valve Adjustment Fallout...
>
> I recently had my 90k service performed on my Honda Civic EX 2000 at a
> Firestone Complete Auto Care. This included spark plug replacement,
> ignition wires replacement, fuel system tune up, valve adjustment, etc.

What's a "fuel system tune up"? I hope you're not referring to an
injector flush, which is usually a waste of money and possibly a risk
(injector coil insulation can be dissolved). Many bad shops flush
injectors unnecessarily.

Doesn't 90K on a Honda mean a timing belt change is due? Sometimes
they're installed off by 1 tooth or with too much tension, and this can
cause rough running. Hondas can also be very particular about ignition
parts, so don't install magnetic supression wires (very low resistance)
in place of regular resistor wire or spark plugs that aren't NGK brand.
Hondas don't like plugs that aren't NGK, no matter what the
substitution books say. The oxygen sensor error code may be due to the
rough running.

Some Honda factory manuals can be viewed at no charge at Honda's
British web site:

www.honda.co.uk/car/owner/workshop.html

Valve adjustment is done cold, which is unusual for valve trains with
rocker arms (common for those that are adjusted with disks), and
perhaps the Firestone mechanic didn't know this. But since the car was
taken to a Honda dealer, I assume they checked the valves (ask about
this).

Use chain stores like Firestone, Sears, Pep Boys, etc., only for simple
maintenance and repairs, like oil changes, and maybe brakes and wheel
alignments. They tend to be bad for any diagnoses or service
procedures that aren't almost completely standard. I've had chains
insist that cars had no fuel or emissions systems problems because the
car's computer gave no error codes, so they'd change the fuel filter,
do a tune up, or flush the injectors without making any improvements,
but then more knowledgeable mechanics would quickly notice abnormal
readings of the computer's data stream.

 

benjaminjones1@gmail.com wrote:

> Incorrect Valve Adjustment Fallout...
>
> I recently had my 90k service performed on my Honda Civic EX 2000 at a
> Firestone Complete Auto Care. This included spark plug replacement,
> ignition wires replacement, fuel system tune up, valve adjustment, etc.

What's a "fuel system tune up"? I hope you're not referring to an
injector flush, which is usually a waste of money and possibly a risk
(injector coil insulation can be dissolved). Many bad shops flush
injectors unnecessarily.

Doesn't 90K on a Honda mean a timing belt change is due? Sometimes
they're installed off by 1 tooth or with too much tension, and this can
cause rough running. Hondas can also be very particular about ignition
parts, so don't install magnetic supression wires (very low resistance)
in place of regular resistor wire or spark plugs that aren't NGK brand.
Hondas don't like plugs that aren't NGK, no matter what the
substitution books say. The oxygen sensor error code may be due to the
rough running.

Some Honda factory manuals can be viewed at no charge at Honda's
British web site:

www.honda.co.uk/car/owner/workshop.html

Valve adjustment is done cold, which is unusual for valve trains with
rocker arms (common for those that are adjusted with disks), and
perhaps the Firestone mechanic didn't know this. But since the car was
taken to a Honda dealer, I assume they checked the valves (ask about
this).

Use chain stores like Firestone, Sears, Pep Boys, etc., only for simple
maintenance and repairs, like oil changes, and maybe brakes and wheel
alignments. They tend to be bad for any diagnoses or service
procedures that aren't almost completely standard. I've had chains
insist that cars had no fuel or emissions systems problems because the
car's computer gave no error codes, so they'd change the fuel filter,
do a tune up, or flush the injectors without making any improvements,
but then more knowledgeable mechanics would quickly notice abnormal
readings of the computer's data stream.