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LT1 Misfire problem...help please

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Old 06-19-2003, 02:17 PM
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LT1 Misfire problem...help please
ok heres the deal i have an 96 lt1 w/ 161,000 miles, ive change the opti, coil, wires, plugs... but it still misses between 5k - 6k... now some one mentiond it could be my valves but ive never adjusted them since i had the car....
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Old 06-19-2003, 02:35 PM
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anybody!!!

BTW it only does it at WOT
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Old 06-19-2003, 03:02 PM
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My 94' did that until I replace the stock coil with an MSD Blaster coil....Since you already replaced that part, Im not sure...Could be your Fuel Pump? Just a thought
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Old 06-19-2003, 03:13 PM
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i have a walbro 255lph in there now, that was put in over 2yrs ago.. but its driving me batty...
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Old 06-19-2003, 04:09 PM
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Fuel filter may need to be replaced?
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