Printable View
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?
Are you seeing any TPS DTC's...?
Try what you said and see what it does.
I will make the change and see if any DTC get set.
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.
There were three that we not reported so I turned them back on. P0121, P0122 and P0123
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.