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8v problem
I'd suspect the O2 sensor. When bad, the computer will enrich to compensate,
making the car run like crap. The full throttle switch makes the car run in
open loop, effectively ignoring the O2 sensor.
Follow the Bentley Manual procedure for checking the O2 sensor.
HTH,
Jonas
On 4/11/02 2:23 PM, "Joe Doty" <rocco2nr@hotmail.com> wrote:
> My first guess would be a vacuum leak. The idle screw o-ring, injector
> o-rings, intake manifold gasket, and intake boots are all sources of
> potential leaks.
>
> Joe
>
>> It's an '85 8v scirocco. The problem is speratic. When it's having
>> problems it's idle goes up and down. The problem isn't just at idle. It's
>> all the way through the rpm range, hesitating. If you floor it there isn't
>> a problem. When it's at idle and you press the full throttle switch it
>> runs great, problem goes away. Anyone know what may be causing this?
>> Thanks
>
>
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