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iamtheyi
01-04-2012, 11:12 PM
I've recently run into a problem with my motor losing power/hesitating at higher rpms. I first noticed this problem two days ago when I went to the track. Car would be okay until it hit 4k rpms and it would cut fuel and stay there, misfiring and sounding like a rev limiter.

Now that I've come back, it hesitates over 4k and loses almost all sense of power over 4k rpms. Regular driving under that seems fine as of this moment. Friend thought it was the IAT sensor but I have my doubts. Any ideas?
godrifttoday
01-05-2012, 02:48 AM
Do u have a code? Im sure u should, so which one?
iamtheyi
01-05-2012, 01:11 PM
Do u have a code? Im sure u should, so which one?

lol that's the funny part. I have no codes making diagnosing this thing a bitch haha.
Garage Life
01-05-2012, 04:03 PM
Check your engine harness grounding, its near the top of the front cover by the upper intake manifold.. Sometimes loose grounding there can cause that. If not test the fuel pressure, maybe fuel pressure is low. But yeah, no code makes diagnosing harder
iamtheyi
01-05-2012, 04:25 PM
Check your engine harness grounding, its near the top of the front cover by the upper intake manifold.. Sometimes loose grounding there can cause that. If not test the fuel pressure, maybe fuel pressure is low. But yeah, no code makes diagnosing harder

Just checked the ground. Nothing is wrong. I'll check the fuel pressure when I can go out and rent the kit from vatozone.
iamtheyi
01-06-2012, 04:30 AM
Think I've found the problem lol. My car's fuel pump just took a dump. Anyone know whether or not a walbro will make my car run Rich on stock FPR?
g man
01-06-2012, 06:33 AM
Think I've found the problem lol. My car's fuel pump just took a dump. Anyone know whether or not a walbro will make my car run Rich on stock FPR?

should be fine. the fp regulator will do its job lol.. it wont run rich