[Shotimes] CHECK ENGINE On Deceleration

[Kevin & Cheryl Airth]

Pete:
 Run the codes. You might have something simple like not having the gas cap
tightened down enough.
 Generally if you get a check engine light in deceleration. It's an O2
sensor code. Just my observation. As they age their response time slows. If
the O2 does not change fast enough for the PCM then you get a error light.
How old are the O2 sensors?
.
.
Maybe your car has not had time to relearn it's idle with the changes you
have done to the car? Was the battery unhooked for all your A/C work? Has
the IAB ever been changed?
.
.



> Funny thing started today, with the CHECK ENGINE
> light coming on while decelerating from 75 in 5th
> for an exit ramp. It happened 3 times and all in the
> same conditions. It's only on for 5 seconds at the
> most.
> Another annoying problem cropped up today while
> driving
> in city type traffic. When in traffic and the light
> turns red and it's a clutch and brake scenario, the
> engine stalls. This is with the AC on. I've had the
> car 5 days from picking it up with new AC compressor
> and lines, and it never did this. The only thing that
> may or may not tie into this, is that I just filled
> the tank with gas. Could poor fuel cause this?
> It all started after I got gas, but it could be non
> related. Thanks.
> -Pete