extreme lean condition at high boost.

[Grant Lenahan]

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.

Hmmm

Grant
On Oct 23, 2006, at 10:36 PM, Huw Powell wrote:

>
>> 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/
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