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Thread: Misfire or Stumble?
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07-07-2008, 10:52 AM #1
- Join Date
- Aug 2005
- Location
- San Diego
- Posts
- 272
Black- 1999 Camaro Z28 (SS kit)
Misfire or Stumble?
1999 LS1 M6 91k miles
After having new fuel filter installed and putting my NX Wet 150 back on (by pulling the shrad valve too), the car has a mis or stumble?
I have not run the juice yet since I am afraid I might cause damage.
I use to be able to start in 2nd from a dead stop, but this is when it happens.
It also happens if I am in a lower gear than I am supposed to be in...it will bog like normal, but than the mis/stumble will appear along with the bog?
It also was knocking/det from high 4's to 6k rpms, so I reset the pcm, and it went away for a day....now it is back along with the stumble again.
***I am getting P0430, 2nd bank, or, BAD CAT...comes and goes, but this has happened for years now...I just keep clearing the code. Could this cause this mis/stumble?
Could it be the fuel filter?
Could it be the shrad valve being taken out?
Could it be the spark plugs or wires?
Any ideas?
This prob could take a lot of trial and error until I find it.
Thanks,
Rich
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