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Thread: Cam angle sensor.

  1. #1
    Haydz's Avatar
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    Default Cam angle sensor.

    hey well really at the moment my car is running but it does not run very well
    so the question is
    i have the plug on the loom for the cam angle sensor but there is no connector on the engine. when i bought the car i was informed that the engine had been changed with another one and im guessing that it was not the exact same engine.
    this leads me to the problem

    the car changes itself to limp home mode because it is not getting the signal from the cam angle sensor. and thus runs rough chew fuel etc.
    the only way i can think of fixing this problem may be to install a computer that doesnt run with a cam angle sensor. does anyone else have any ideas or know what model i would be looking at

    just so you know its a 94 vr berlina auto
    thanks alot.
    any help will be appreciated,

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    hako is offline Donating Member
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    I've read somewhere that if the cam angle sensor is unserviceable the ECU runs on a default figure....and not limp home mode and the result is a slight increase in fuel consumption. Maybe the car is going into LHM for some other reason.

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    in limp home mode will i get like a miss every 3 cycles when idling and also i have checked the computer for codes and i get a code 48 cam angle sensor-missing or intermittent.

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    hako is offline Donating Member
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    In LHM the main effect will be transmission related with only 2nd and 3rd gear being available....this is so that if something is wrong then not too much strain will be put on the car.
    So...I'd say you're not in LHM and the miss every 3 cycles is due to the computer or ECU not being told by the cam angle sensor when to fire the injectors so it fires the injectors in a kind of 'backup' method.
    What I'd do is write down the engine number, go to Holden and find what model the engine is from and then get a ECU from a wrecker....dunno the price but they rarely fail so should not be big dollars....or cheaper may be Ebay or a private person wrecking their car. But until you get the correct ECU you will have this problem. There may also be another problem as the VS (not sure about early VR) trans is also controlled by the ECU
    but hopefully that doesn't apply to you.
    Maybe post the number to this forum and someone can identify it.

  5. #5
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    Quote Originally Posted by hako View Post
    In LHM the main effect will be transmission related with only 2nd and 3rd gear being available....this is so that if something is wrong then not too much strain will be put on the car.
    So...I'd say you're not in LHM and the miss every 3 cycles is due to the computer or ECU not being told by the cam angle sensor when to fire the injectors so it fires the injectors in a kind of 'backup' method.
    What I'd do is write down the engine number, go to Holden and find what model the engine is from and then get a ECU from a wrecker....dunno the price but they rarely fail so should not be big dollars....or cheaper may be Ebay or a private person wrecking their car. But until you get the correct ECU you will have this problem. There may also be another problem as the VS (not sure about early VR) trans is also controlled by the ECU
    but hopefully that doesn't apply to you.
    Maybe post the number to this forum and someone can identify it.
    VR also run electronic auto. Sounds possible someone has replaced the motor with something pre-vr (ie. no cam angle sensor) with the original loom and ECU.
    Power is measured in DECIBEL

  6. #6
    azkwazere is offline Ahhh Yes, Ahhh Yes....
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    Where is the thermostat on your engine?

    aZk.

    Edit: Ok, you have a SII engine, still could be from a VN or VP... Check engine serial with holden.

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    im unsure of what you mean.have a look in the vr/vs my ride section and youc an see the pictures. there are some of the engine bay if this helps.

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    hako is offline Donating Member
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    Quote Originally Posted by Haydz View Post
    im unsure of what you mean.have a look in the vr/vs my ride section and youc an see the pictures. there are some of the engine bay if this helps.
    I think Azkwazere has looked at your engine and figured its a VN-VP series 2
    which means that to run things properly you will need a ECU from a VN-VP auto.....but that throws another spanner in as your car should have a 4L60E transmission which is controlled by the ECU and this ECU must have the Cam Angle Sensor input.
    So.....things that I'd do would be first check what transmission you have - it should have a ident on the bellhousing viewable from the passenger side. The first letter of the ID should be 4 (if yours is 94 build) which means it should be a 4L60E. But if its an earlier date then the trans is probably a 4L60 (not electronically controlled)
    So - if the trans is 4L60E then fitting a VN-VP ECU will make the engine run OK but the trans will not operate correctly as it needs the VR ECU.
    This is getting horribly complicated!
    How about looking where the cam angle sensor goes - does it have a blanking plate where you could fit one?....I've heard that the front covers can be swapped so maybe thats another option.
    But really the first thing is to establish exactly what you have - engine/trans/ECU.

  9. #9
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    thanks hako. i will go out and find out what i have hell i might even give the guy i bought it off a call.
    and see if he knows anything
    should i call holden and find out what engine number it is.
    i will pull off the left kick panel and tell you what ecu it is?
    im not sure where i would find the trans info thanks for all your help guys

  10. #10
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    well just come back in and the info i have is as follows.
    vin:6h8vrl19hrl694138
    engine no: vh1239726
    and the computer just say 3.8ltr auto ecu

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