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Old 08-22-2011, 08:21 PM
oab_au oab_au is offline
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Join Date: Mar 2001
Location: Coffs Harb, Australia.
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Significant Technical Input Registered SVX
Re: stumbling idle and backfiring, PLEASE HELP!!!!!

If the engine block is not grounded to the body, spurious voltages can return to the body through the signal wiring carrying control information to the ECU, to change the signals.

Harvey.
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