Question about 1999 Audi A4

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My 99 Audi A4 2.8 liter stopped running the other day. Its starts but wont turn over. The computer said it was crankshaft sensor, we replaced that and its still not turning over.

Battery is good, spark plugs good, fuel pump good, we are stumped..please help

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I do not understand what you mean. If the engine starts it is turning over. Turning over means the engine turns not that it starts. So the engine cranks but does not start? You need to check the crank position sensor. It should have 3 wires at the connector. 1 is power 12V, 1 is ground and the other is the square wave signal. with a volt meter make sure you have power at the wire closest to the curves side of the connector. Check resistence to ground on the wire closest to the square end of the connector. You cannot check the signal with out a lab scope or graphing multi meter. If power and ground are good you need a mechanic.

Posted on Apr 13, 2015

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