Conversions & Swaps LSX Engines in Non-LSX Vehicles
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No spark????

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Old Jun 7, 2005 | 11:56 PM
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Default No spark????

We have ign power at the coil harness and at each coil, but when cranking motor we get no spark? HELP any ideas?
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Old Jun 8, 2005 | 12:26 AM
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From: jackson ms
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crank trigger
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Old Jun 8, 2005 | 12:29 AM
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Someone has cut and spliced a new connector on to my crank shaft position sensor. there are a yellow (pin 44 Red plug) yellow w/black (pin 22 blue plug) and green (pin 62 blue plug) they have each been connected to a dark blue aftermarket wire that plugs into the crank positon sensor! is this ok? i know your not susposed to mod o2 sensor wires could this be my problem?

Last edited by SICMARO; Jun 8, 2005 at 12:54 AM.
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Old Jun 8, 2005 | 01:42 AM
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From: jackson ms
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I think you need a complete wiring diagram to sort that thing out. there is no way anyone on this board will know how to assist you with a harness that is that modified.

the O2 harness will have nothing to do with it not getting a spark. if it the coild have power, the VATS is removed, and the trigger is working you should have spark.
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Old Jun 8, 2005 | 02:15 AM
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When I tried to fire mine for the first time, I had power everywhere but it wouldn't start, just like yours. So I ran a line direct from the battery to the computer instead of through the ign. switch. She fired right up. I just simply didn't have a strong enough power source. After that I added a new ignition relay and it runs great. This may not be the problem, but you might as well start with the easy stuff.
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