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TPS vs RPM
My 2000 Corvette is heavily autocross-ed (BS) and occasionally in 2nd gear, the car will not accelerate quickly when the tach is around 3500-4000 rpm. Since the season is over I was looking at several log runs. In checking the tune I noticed C3906 might be limiting my throttle from opening faster, I was wondering if I would be better off increasing the upper limits between 2800 rpm and 4800 rpm and having it go to 95 or 100% from 4800 and above?
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Are you seeing any TPS DTC's...?
Try what you said and see what it does.
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I will make the change and see if any DTC get set.
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If you see any TPS DTC's then table C3906 is being exceeded... of course check that the TPS DTC's are enabled in C6001.
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There were three that we not reported so I turned them back on. P0121, P0122 and P0123
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Ran a scan last night and there were not DTC's tripped. Also I noticed it felt like an improvement in mid RPM acceleration. When time permits, I will look at the scan and see if there was measurable difference as I ran a similar scan just before I flashed the changes.