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Cam positioning sensor

This is a discussion on Cam positioning sensor within the External Engine forums, part of the LSx Technical Help Section category; Car has not been cranking on first and even sometimes second turn, very embarassing ..ive tried everything that i know ...

  1. #1
    GET SOME claytonr's Avatar
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    Cam positioning sensor

    Car has not been cranking on first and even sometimes second turn, very embarassing ..ive tried everything that i know of from checking fuel pressure which is good..relays good.. battery, alternator, new starter..new plugs, wires, fuel system cleaner..ive narrowed it down to the cam positioning sensor which a member brought to my attention..he said that the sensor can throw the ignition cycle off because it doesnt know what stroke the engine ended on therefore what to start it on..makes sense to me just dont know about where the sensor is located, where to buy(part #) and if it would matters if it has a cam swap(hot cam)..someone please enlighten me w/ your opinion..thanks

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    cutting and welding mark21742's Avatar
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    Cam sensor is located right next to oil pressure switch behind the intake, ontop of the block.

    Might e your crank position sensor too, it on the passenger side of the block above the starter

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    Have you plugged a scanner into the OBDII port?

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    I vote crank positioning sensor
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    GET SOME claytonr's Avatar
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    yea the cars been dynoed so im assuming thats why no codes pop up..plugged in w/ no light no codes came up as well..so leaning more towards cam positioning sensor or crank sensor??? symptoms kind of seem like both..it actually sounds like it doesnt know which stroke it is on when starting..

  6. #6
    GET SOME claytonr's Avatar
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    I replaced the crank positioning sensor this weekend didnt help at all..so its got to be the cam sensor?

  7. #7
    Junior Member mack42104's Avatar
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    claytonr Did it fix your car the cam position sensor??? Im having same problem??

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