My engine cuts out at 5k RPM - no idea why ........read inside for details
06-15-2004, 05:56 PM
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My engine cuts out at 5k RPM - no idea why ........read inside for details
I blew my turbo a few months ago. So, while I was searching for another KO4, I decided to upgrade my GIAC programing. GIAC/Evolution Motorsports upgraded my programing to a 310 injector program. Ever since Evolution messed with my programing, I have had problems. First they sent the wrong Chip and the computer did not even work, so I had to send it back to be reprogramed, then they sent it back to me, and the car runs like ****!!!!!!
Any thoughts? My car pulls pretty good until about 5K rpms - then it shuts off like it is hitting the rev-limiter.
The only thing that is different from before the turbo blew is - NEW KO4(had a K04 before), New Programing, New 310cc injectors from 270cc.
HELP!!!
Any thoughts? My car pulls pretty good until about 5K rpms - then it shuts off like it is hitting the rev-limiter.
The only thing that is different from before the turbo blew is - NEW KO4(had a K04 before), New Programing, New 310cc injectors from 270cc.
HELP!!!
06-17-2004, 06:26 AM
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Did you end up changing the FPR?
The 310cc chip is tuned to be ran on a 3 bar fpr while your stock one is 4 bar. YOu will be running way to rich and this will cause the car to cut out once the turbo starts to move plenty of air.
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06-19-2004, 08:44 AM
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This is the problem if your running the older 310cc injector chip
This chip was tuned on RC 310's at 3 bar which flow like Bosch 270cc at 3 bar. If your going to run those Bosch 310cc injectors which IIRC are red tops, you will need to turn your fuel pressure down to 33.5 lbs(2.3 bar) with the vac line removed and the car at idle. You can also just try starting at about 2.5 bar (36psi) and work your way down. If not I would say find some RC's or the bosch 270's to run it at 43.5 psi.
