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Rev Limit not changing?
Posted:
Sun Apr 15, 2007 11:27 amby hrmax
My tuner changed the rev limit on my car to 8k, which shows correctly when read back from the ecu, but the car cuts out at 7k still. He said it was the second STI he has seen this with. Anyone else have this experience?
Posted:
Mon Apr 16, 2007 10:03 amby Freon
The drive by wire table needs to be modified as well. You're not getting fuel cut at 7000, but the throttle plate is closing itself to about 20%.
Here's an example of the rev limit raised to 7250:
Posted:
Mon Apr 16, 2007 10:22 amby hrmax
Thanks!
Posted:
Wed May 23, 2007 6:51 pmby absubtle
Thanks!!! Just had this happen to me today. 05 STI, I was also trying to raise rev limiter to 8k. But it would not go to 8000rpm.
THANKS.
Absubtle
CO
Posted:
Wed May 23, 2007 8:32 pmby absubtle
Oh BTW, this 05 STI has Cosworth heads, valvetrain and cams. Mahle pistons, stock rods. Greddy T67 Turbo kit upgrade, w/ supporting mods. So I am not just upping the rev limit for shits-and-giggles...
Absubtle
CO
Posted:
Tue Jan 01, 2008 7:16 pmby porkhang
so how would you do this on ecuflash? would this be in target throttle plate position?
Posted:
Wed Jan 02, 2008 5:33 pmby Freon
Well, it may be called different things in different versions of definitions. It should look roughly like the one I posted. Some cars do not shut the throttle at redline, though. There is also another background map that I do not suggest messing with.
The above map is actually an intermediate value that drives the actual throttle angle position. Merchgod coined it "desired torque" which isn't a bad idea, though it is sorta an arbitrary unit of measure because it is not tied to any sort of physical sensor. If you are using the latest ECUflash definitions that Merchgod made, it would use his naming scheme.