I started my car engine and kept on idling for about 15-20 minutes. Cleaned
the snow outside.
Got back to my car inside, switched off the engine and keyed on again.

CHECK ENGINE light started appearing.

Could it be because of excessive idling ??

Help greatly appreciated.Thanks
Suresh

 

Nope. Not from just idling. Take it in and have it checked in a
reasonable amount of time.

 

Check that you gas cap is tight with at least 10 clicks. If that is
the cause it will go out after the next fill up.

 

I took my car to autozone and did a diagonostic read.
The code came out to be P1502 and said the following:

MANUF CONTROL VEH SPEED
IDLE SPD CONTROL AUX INPUTS

The technician said nothing serious and asked me if I want the code to be
cleared. I said Yes and planning to see if it comes back again.

Any advice?

 

P1502 indicates a circuit issue for the vehicle speed sensor located on the
right front wheel. It's possible something may have gotten in there and
torn the wiring or an animal looking for warmth ate the wiring, or some
other issue witht the circuit. Generic scan tools won't be able to tell
you what the P1502 means because anything of the form P1xxx is a
manufacturer specific code.

You should take your car to have it checked. If it's still within the
warranty period, take it to the dealer.