Re: little problem diaganostic

[Brad Sheridan <brads@mindspring.com>]

At 09:11 PM 7/28/99 EDT, you wrote:
>Ok now that my new motor mount is in and my car is feeling good I'd like to 
>fix the last annoyance that I have, and I can't diagnose it on my own. The 
>problem is that when the car is cold it pulls HARD to redline without a 
>problem, but as soon as the car heats up 1/4 of the way, the car will 
>studder when I'm at full throttle. The studdering doesn't happen until just 
>after 6k rpm's but happens in first and second gear.  It feels like I'm 
>hitting the rev limiter to soon. I checked the spark plugs, and they were 

 The higher gears pull to redline OK even when its hot? If so, I wouldn't
suspect the ignition. In higher gears, you should have higher engine loads.
So if it were a plug or coil problem, it would act up at a lower RPM in the
higher gears. More engine load means that it requires more from the
ignition to create a spark. So if it is a problem with a marginal plug,
coil, or something else in the ignition system, it will act up most at
higher engine load, and in higher gears. This was my experience when I
found out that the Beru plugs were causing my premature rev limiting. 
  Have you checked the full throttle switch? What condition is the O2
sensor in? 

Brad




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