racersedge1821
15+ Year Contributor
- 103
- 0
- Aug 19, 2007
-
Celina,
Tennessee
I have a 1998 GST. 140k miles nearly stock only mods done are injen intake and a cat delete with a megan racing catback exhaust. My problem is anything under light load and under 3k rpm the car hesitates(kinda like a miss but not) and under cruise control it hesitates very little. I have replaced plugs,wires,o2 sensor,cut the cat off,fuel filter, and several boost leak tests with only thing leaking is stock BOV,and run fuel injector cleaner threw it. What could be left? what is causing this problem?
Could it be phantom knock at low rpm? Thats the only time it does the shutter at low rpm like 2000-3000 rpms.
come on guys? anything?
Could it be phantom knock at low rpm? Thats the only time it does the shutter at low rpm like 2000-3000 rpms.
come on guys? anything?
Last edited: