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tsc0495
New User
Dec 1, 2009, 5:36 PM
Post #1 of 5
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1992 oldsmobile cutlass 3.1 engine..this car shows engine code 43. can any one point in the rigth way on this. change the knock sensor still got the code.
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 1, 2009, 5:56 PM
Post #2 of 5
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Re: engine code 43
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The components for this circuit are the knock sensor, Ignition control module, the PCM and all the related wiring. Any of them can be causing your problem. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Loren Champlain Sr
Veteran
/ Moderator
Dec 1, 2009, 6:11 PM
Post #3 of 5
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Re: engine code 43
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tsc; The 'Knock sensor' is designed to 'listen for pre-ignition' ping. Or, spark knock, if you will. Unfortunately, it can't distinguish if the 'knock' is from pre-ignition, rocker arms, rod or main bearings. Do you have ANY engine noises that it could be 'hearing'? Loren SW Washington
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 1, 2009, 6:30 PM
Post #4 of 5
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Re: engine code 43
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A code 43 means there is a problem with the ability to adjust timing so the system is not operational. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Sidom
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/ Moderator
Dec 1, 2009, 8:34 PM
Post #5 of 5
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Re: engine code 43
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Check the wiring harness that comes from the sensor around the front of the engine. I had one where the harness got moved and the serp belt cut thru the knock sensor wire.....
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