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2G 97 camshaft sensor on a 96

Posted by Condemned, Feb 1, 2020

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  1. Condemned

    Condemned Probationary Member

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    I have a 1997 gst. I recently put a 1996 gst engine on it but it doesn't want to start up. Can I just put the 97 camshaft sensor on the 96 head without having to tap the cam? Please help. Many people have different opinions on this matter. Whats the easiest way?
     

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    1997 Mitsubishi Eclipse GST
    manual · 2G DSM
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  2. delta448

    delta448 DSM Wiseman

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    It should be a mostly bolt on affair. The aluminum 97 sensor housing replaces the rubber coated plug on the end of the head. The only issue is if it has a stock 95-96 intake cam which will not have the bolt hole for the 97 sensor's cup fitting. The locating slot will be there but the cam will have to be drilled and tapped for 8mm x 1.25 thread. Or, just borrow over the 97 head's intake cam with the sensor cup and retime the engine.
     

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  3. Condemned

    Condemned Probationary Member

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    Unfortunately it is a stock cam from the 96. Do I have to remove the metal plate from the 96 cam gear after putting the 97 cam sensor on or can it stay on there?
     

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    1997 Mitsubishi Eclipse GST
    manual · 2G DSM
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  4. delta448

    delta448 DSM Wiseman

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    The plate for the 2Ga sensor can stay on the sprocket, you could even leave the 2Ga sensor under there as well if you wanted.
     

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  5. Condemned

    Condemned Probationary Member

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    Thanks you very much! I will get the camshaft tapped and go from there. Very much appreciated!
     

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    1997 Mitsubishi Eclipse GST
    manual · 2G DSM
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  6. motomattx

    motomattx Proven Member

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    You could swap the plug wires over and it would probably start for you, the 95'-96' uses an inverted cam signal, the 97' ecu wont play well with it in stock form, you could use a 95'-96' ecu and that could work also.
     

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    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  7. Condemned

    Condemned Probationary Member

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    Swap the plug wires? Please explain. I read on an older thread too about having to fix the firing order and injectors.
     

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    manual · 2G DSM
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  8. miguelmcv

    miguelmcv Proven Member

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    That requires rewiring the cam sensor
     

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    1997 Eagle Talon TSi AWD
    awd · automatic · 2G DSM

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  9. miguelmcv

    miguelmcv Proven Member

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    Wire in the the 96 sensor which is under the intake cam gear and swap the firing order and it should fire up, you don’t need to swap the injectors, just the plugs and you will be set.
     

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    1997 Eagle Talon TSi AWD
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  10. motomattx

    motomattx Proven Member

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    Yeah, now that I think about it he would have to splice the three wires for the cas, but thats not a bad price to pay instead of pulling a motor mount, timing belt tensioner, tensioner pulleys and timing belt and then re-assemble it all in the car!
     

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    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  11. delta448

    delta448 DSM Wiseman

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    I should have mentioned all these options instead of just answering your question literally. If it were me, I'd either use a 95 Eprom ECU or I'd swap to the 1G CAS, but if you just want to get it running, swapping the plug wires from coil to coil should work fine. Kudos to @motomattx, @miguelmcv and @007jimmy for reading between the lines.
     

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    awd · manual · 2G DSM
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  12. Condemned

    Condemned Probationary Member

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    I tapped the 96 cam to use the 97 cam sensor but now there is no spark. Sometimes one or two give a little spark but that's it. I got new spark plug wires and coils but it won't start. No codes come up when I plugged up the scanner. Any suggestions?
     

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    1997 Mitsubishi Eclipse GST
    manual · 2G DSM
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