Sensor sounds like the knock sensor. Did you unhook the ground from the engine? Make sure that it is connected to the engine and body.
Check the wire that goes into the main fuse box by the battery, maybe something came loose...
Hope you find it.
Everet <img src="/forums/images/graemlins/patriot.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />

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