Camshaft Position Sensor Reference Voltage Too High?

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  1. Camshaft Position Sensor Reference Voltage Too High? 
    #1
    Bimmer Fan
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    Paul_UK_E46's Car Details
    Model of Car:
    318i SE
    Year of Manufacture:
    2000
    Transmission Type:
    Manual
    Car Body Type:
    Saloon

    Join Date
    Jun 2013
    Location
    Cheltenham UK
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    I have error code P0340 indicating a faulty Camshaft position sensor circuit fault. It's a 318i M43 engine so only has one CPS apparently. I figured as its a 13 year old car there was a good chance the sensor is at fault so replaced I it. Neither before or after I replaced it did it give me an engine light, but it still shows up on my OBD scanner as a fault even after replacing it with an OEM sensor.

    So I tested the harness with a multimeter following Bentleys manual youtube video. But my pin 2 reference voltage shows 10 volts, whereas in the video his showed 5 volts and said that was normal. He was testing on an M54 engine but I imagine the voltage would be the same for mine?

    Does anyone know if my reference voltage is too high and if so what do I do next?
     
     

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    #2
    Bimmer Fan
    Car Details
    adhen's Car Details
    Model of Car:
    318Ci
    Year of Manufacture:
    2000
    Transmission Type:
    Auto
    Car Body Type:
    Coupe

    Join Date
    May 2012
    Location
    London
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    I have the same error code P0340 on my 2000 318ci. I can reset the code with my Samsung phone and OBD bluetooth adapter. but after 50 miles or so the management light comes back on. I did the same as you and checked the voltage, expecting it to be 5 volts as per the video, and like you my multimeter showed 10 volts. So perhaps this correct for the M43 engine. I also have error code P0170 which is a fuel trim malfunction.

    After reading your post I'm reluctant to buy a new CPS until I can be sure thats the problem!
     
     

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