Having misfire issues
09-03-2013, 12:45 PM
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Having misfire issues I have a 04 lq9 that I'm swapping into a 70 camaro. The motor has tsp 224 cam, ls6 heads, ls7 card style maf, and mid length headers. I did the harness following ls1swap. The problem I have is cylinders 3,5, and 6 won't fire. I have checked the computer, compression, fuel pressure, spark, and wiring. This thing has me stumped. It seems to run fine at start up for a few seconds then it goes into a rough idle. Any ideas would really help.
