Full Throttle, full boost hesitation revisited

[Ameer Antar]

how about leaky cold-start injector? Is the mixture set right? You should 
try to figure out what's going on w/ the mixture at WOT...is it lean or 
rich...b/c both conditions cause hesitation. An AFR gauge works pretty well 
at this. I don't think there's much use in adjusting the fuel pressures, 
b/c the car works fine as designed, yer just trying to compensate for 
something that isn't working right...I think it's better off replacing it 
than having that component finally fail or losing the proper setting when 
things are fixed. just my opinion. good luck.

-ameer


At 08:42 PM 2/11/2001 , you wrote:
>Recently I thought I had found my FT hesitation problem in the FT switch.
>Running a set of wires into the cabin, I was able to confirm that the
>connection was made, and earliest results were positive.
>The intermittent FT hesitation however is still there. I also played with the
>FPR pressure settings, and was able to change the running characteristics
>slightly with these experiments, but no major solutions.
>The car requires peddle input to start cold, and 20 minute hot starts are
>difficult.
>I have replaced the injectors, the O2 sensor, and verified outputs on all
>senders, and fuel pressure readings. A diligent scrutinizing with a
>stethoscope and flammable substances show no vacuum leaks.
>All in all it's running quite well, just this one problem I'd like to cure,
>and I can't nail down.
>Any input appreciated.
>
>Dennis