Question about GMC C1500
ELECTRONIC SPARK CONTROL FAILURE.SOUND LIKE A FAULTY KNOCK SENSOR.ITS NOT RETARDING TIMING ANYMORE SENSOR OPEN.
Posted on Sep 28, 2009
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Posted on Jan 02, 2017
SOURCE: code 43 whitch is a
Knock sensor is the connection on the knock sensor,may have came off . Or better yet a new one maybe in order. Make sure there is no engine knock going on and by the way is this a truck if it is make sure the hitch is not rattling setting this code on
Posted on Apr 21, 2011
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The engine and transmission in this cars drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant teperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL THE DIAGNOSIS & TESTING IS COMPLETED.
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