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weird problem

Old Jun 20, 2008 | 11:20 PM
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Hey everyone i got a 98 trans am i just did a motor swap on it and i cant get it running well not really anyway... i tried to start it i had no power at my fuel pump well i couldnt figure it out i took a OBD II scanner plugged it in turned the key on. My pump primmed itll only prime with the scanner plugged into the port my gauges wont work until i plug in the scanner to with the scanner plugged in it fired for a second backfired and died and i couldnt get anything after that. Is my computer messed up or could i have a bad ground somewhere ive been trying for a week now to figure out my problem THANKS in advance
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