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Old 01-12-2010, 03:25 PM   #13
corhey88
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Re: 96 GMC Jimmy black smoke, backfires, Timing?

Ok, i did the test on the timing, And the rotor lined up perfectly with the 6.
So, i did not jump time?
After doing the test i tried starting it again, it just backfired throught the throtle body... I can get it to start and run for like a minute then it die out and backfires like the whole time it is running.
I amd wondering now if maybe the ECU computer is just FRIED or something.?????
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