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Join Date: Apr 2010
Posts: 1
Angry 84 944 no spark

Just changed speed and reference sensors, still no tach movement. Also changed DME relay. Read about moving harnesses and wires but can't remember which ones to move, checking for bad connection. Problem is driving me nuts. Any suggestions and which harnesses I wiggle. Anything more that I can do to get tach bounce? Will fuel pump run with no tach bounce. Thanks

Old 04-12-2010, 09:50 AM
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Join Date: Jan 2010
Location: NW suburbs, Chicago,IL
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the reference sensor tell the computer to turn on the fuel pump which in this case you have new sensor, but have you gap them to 0.8mm from the flywheel?? and have you tried to just jump the relay? and ur answer to the tach bounce running the fuel pump if you jump the fuel relay it would be on constantly. but you could try to check ur wiring from the sensor to the DME plug by checking current and resistance reaching the dme. hope this help
Old 04-12-2010, 11:15 AM
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Join Date: May 2009
Location: Hawkinsville / Perry, Ga.
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When in doubt always go back and recheck.

Speed and Reference Sensors - Checking, Replacement, and Adjustment

Cheers,
Larry

Old 04-12-2010, 11:40 AM
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