Chrysler Repair: Engine Cutout3, shaft sensors, crank sensor


Question
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Followup To
Question -
Roland, I got rid of the 11 code by replacing the crank sensor. No more stalling.  Now engine light comes on with a code 43, multiple cylinder misfire...now what's going on?...Thanks...Scott
Answer -
Hi Scott,
The multiple misfire is sensed by the crank sensor when the timing between firings is too uneven (which suggests misfiring, either on a given cylinder or all cylinders). I wonder if you installed the crank sensor properly. The way it is provided, there is a paper spacer on the end of it which is supposed to be left on it, then you stick it in the socket until the paper tip strikes the rotating drive plate of the engine, then tighten the retaining bolt to 105 inch-pounds. The paper spacer probably is designed to be self-destructed (worn away) but the result is that the actual metal tip of the sensor is the proper distance from the drive plate to operate correctly.
So consider whether you migth not have erred in that installation process. I believe that the paper spacer is sold as a separate item at the Chrysler dealer.
Roland

Roland, I noticed the spacer on the end and figured that was what it was for, so I did install it with the spacer intact. Could it be possible that it would throw a code until the spacer actually wears away? Could it be causing "interference"? I noticed on the old one that the plastic had actually been rubbing on something, like it was installed without the spacer. I made sure it made contact when I installed it. Thanks again...Scott

Answer
The trouble shooting manual lists the following possibilities:
secondary igniton wires, fuel pump or filter, injector harness connectors, ignition coil circuit, spark plugs, mechanical engine problem, contaminated fuel, PCM power ground, injectors, restricted exhaust,intake restriction, PCM,evap system, air gap at high rpm (with reference to the crank and cam shaft sensors), damaged trigger wheel (with reference to the what the sensor are "looking" at.
One other possibility is to test the car without the A/C running (if you haven't already done that) because an oscillation of the compressor can manifest itself with the misfire code.
So the manual is not very helpful with general misfires, except to go thru the entire engine in the logical manner.
I personally haven't dealt with a crank sensor so can't give you a knowledgeable opinion about your question.
Why not get a new spacer and try it again. This would give you a chance to look at the tip.
Roland