extreme lean condition at high boost.

[Huw Powell]

> Yea, but if all the other systems are delivering fuel, somewhat 
> proportionately to airflow, why would it go "off the scale lean" 
> suddenly? It sounds as if something is either reducing fuel delivery or 
> abruptly stopping it at a certain rate.

Is that a reason not to check the WOT switch?  It's easy to check the 
switch, a slight pain to check it from the ECU end, but still a low 
impact (on the technician) test to eliminate one common failure item.

>>> As soon as I put on the accelerator hard, it goes off the scale to
>>> the lean side--which is dangerous to the engine at boost.
>>>
>>> I've got all new injectors on the car, good fuel pressures, good ISV
>>> and known good warm up regulartor.  Any ideas?
>>
>>
>> Test your WOT switch, connector, and wiring.  It tells the ECU to go
>> rich once you are past a certain point of pedal motion.  If it's bad (or
>> not talking to the ECU...), this could explain your problem.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/