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engine code 43


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tsc0495
New User

Dec 1, 2009, 5:36 PM

Post #1 of 5 (2945 views)
engine code 43 Sign In

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.


Hammer Time
Ultimate Carjunky / Moderator
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Dec 1, 2009, 5:56 PM

Post #2 of 5 (2939 views)
Re: engine code 43 Sign In

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.



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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.



Loren Champlain Sr
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Dec 1, 2009, 6:11 PM

Post #3 of 5 (2935 views)
Re: engine code 43 Sign In

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


Hammer Time
Ultimate Carjunky / Moderator
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Dec 1, 2009, 6:30 PM

Post #4 of 5 (2933 views)
Re: engine code 43 Sign In

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.



Sidom
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Dec 1, 2009, 8:34 PM

Post #5 of 5 (2927 views)
Re: engine code 43 Sign In

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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