[s-cars] possible ignition problem

[Adam Cramer]

Yep, I've replaced the 02 sensor (Bosch OEM). Forgot to mention that in my 
laundry list of "replaced that" items. 
  How do I pull the DTCs? Do I need a vag-com for that?
 

 On 7/20/05, Kent McLean <kentmclean at mindspring.com> wrote: 
> 
> Adam Cramer wrote:
> > I have the exact same problem. Occasionaly (33% of the time) the car 
> seems
> > to hunt for the proper idle RPM. It won't do this when it's cold; only 
> after
> > it's been driven for a while. I also have a hesitation under hard boost.
> > I've checked/cleaned/replaced the ISV, IAT, plugs, air filter and POS. 
> I've
> > also checked for air leaks and found nothing. My next test will be the
> > coils.
> 
> O2 sensor(s)? My guess is that when cold, the car is getting
> a rich mixture. As it warms up, the O2 sensor starts misleading
> the ECU to cause it to hunt at idle.
> 
> Have you pulled the diagnostic troubleshooting codes (DTC)?
> 
> --
> Kent McLean
> '94 100 S Avant, "Moody"
> '89 200 TQ, "Bad Puppy" up in smoke
> 
> 
>