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CEL when decelerating
Posted: December 15th, 2004, 2:15 am
by hgallegos915
hmm i checked codes and got the barometric air pressure sensor..what in the world is that o.0 also my cel comes on lets say im on a free way..then i slow down, when the rpms are dropping the light comes on. I tap the accelerator and it goes away. is my vaf going? this started happening after i put in my cone intake.
Re: CEL when decelerating
Posted: December 15th, 2004, 2:22 am
by Denson
check your pcv valve or the o2 sensor.. is it in all the way? that could cause your engine idle really low and give out,
Re: CEL when decelerating
Posted: December 15th, 2004, 4:33 am
by IanL
Originally posted by hgallegos915:
hmm i checked codes and got the barometric air pressure sensor..what in the world is that
It compensates mainly for variation of pressure with altitude. It's built into the ECU, so repair = new ECU.
Re: CEL when decelerating
Posted: December 15th, 2004, 9:22 pm
by hgallegos915
my amp was being left on... and the cel light would turn on because the battery was way to low..my thoughts....i fixed the problem and i have no more cel light come on...those were some weird codes it trows...possibly I do need a new ecu. I feel its not as fast as it used to be.
Re: CEL when decelerating
Posted: December 16th, 2004, 3:55 am
by IanL
Originally posted by hgallegos915:
my amp was being left on... and the cel light would turn on because the battery was way to low..my thoughts....i fixed the problem and i have no more cel light come on...those were some weird codes it trows...possibly I do need a new ecu. I feel its not as fast as it used to be.
If the voltage supply to the ECU was low, any amount of weird things could happen to a perfectly good ECU. It is not designed to work under those conditions.