Techs Come In Please...cam And Crank Sensor Reported Values To Pcm???

matty169

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May 8, 2009
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1,542
2004 LB7
What voltages should I be seeing getting sent to the ecm from the cam and crank sensor? I am getting p0091 and p0341 INSTANTLY upon cranking. Watch the "crank and cam sensor signal missed" on the Tech 2 and the crank stays at 0, but the cam goes 1,3,5,7,9,11,13-15, and back to 1 etc. over and over. I am seeing .2-.3v being reported back to the ecm from the cam sensor, and 5.9v being reported back from the crank sensor. Being a hall effect sensor, I would think they should both be reporting the same value, and I am guessing the cam sensor is bad, but it is a week out to order. I have checked the wiring before and after the junctions in the engine compartment, and at the sensors, and ecm. It isnt bad wiring or connections. I am seeing battery voltage and ground at the correct wires at both sensors. Thanks for any help.
I also lose all injector balance rates as soon as the codes are set. They just say 0.
 
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any internal work to the engine


BTW LB7/LLY crank reluctor wheel is 58t 3 hole
lbz/lmm is 58t 4 hole
 
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