Cam position sensor, still having problems....
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ahhh mine was low/no input. I had seperation in the harness on the pass side. Not sure what is causing a high voltage problem. I would trace the CMP wires to the PCM make sure nothing is bare or touching metal...
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From: Texas
Originally Posted by Chris ARE 360
ahhh mine was low/no input. I had seperation in the harness on the pass side. Not sure what is causing a high voltage problem. I would trace the CMP wires to the PCM make sure nothing is bare or touching metal...
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From: Texas
Originally Posted by Chris ARE 360
You have checked every inch? No worn, cracked or melted wires? continuity checked with a meter?
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From: Wichita, KS - 1400' above sea level ;-)
Originally Posted by evil02z
It is possible that the CMP is sending and incorrect signal or no signal. You need a scanner to watch the CMP signal.
About the hard starting....the PCM will start the engine with no CPS by relying on the crankshaft position sensor, but has to guess whether the engine is on a compression or exhaust stroke until it gets it right. This is what causes the extra cranking. This is in the manual under p0343 also.
PRIOR to the problem, did you do any mods to the engine that might have involved working in the area of the CPS or wiring?
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From: Texas
Originally Posted by Plum Crazy Rob
In the factory manual under code P0343 there is a diagnostic procedure. What evil02z said is step number one. Did the dealership run thru the procedure, or what exactly did they do for $150? use a Ouija board? The procedure basically is to tell you whether you have a problem with the CPS, wiring, or PCM....if they did it CORRECTLY (<- key word here) and said the PCM is bad, you should replace it.
About the hard starting....the PCM will start the engine with no CPS by relying on the crankshaft position sensor, but has to guess whether the engine is on a compression or exhaust stroke until it gets it right. This is what causes the extra cranking. This is in the manual under p0343 also.
PRIOR to the problem, did you do any mods to the engine that might have involved working in the area of the CPS or wiring?
About the hard starting....the PCM will start the engine with no CPS by relying on the crankshaft position sensor, but has to guess whether the engine is on a compression or exhaust stroke until it gets it right. This is what causes the extra cranking. This is in the manual under p0343 also.
PRIOR to the problem, did you do any mods to the engine that might have involved working in the area of the CPS or wiring?
