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1987'ish TBI folks, please look at this for me, and match to yours!

Discussion in 'The Garage' started by uglychevyZZ4, Sep 27, 2003.

  1. uglychevyZZ4

    uglychevyZZ4 3/4 ton status

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    1987\'ish TBI folks, please look at this for me, and match to yours!

    [​IMG]

    This is the connector to my MAP sensor, and I need to know if your wires are in this SEQUENCE!

    1-grey, green in the middle, then purple (pinkish if faded) like the pic of mine...
    -OR-
    2-green, purple in the middle, then grey ( like the wiring diagram shows )

    Im trying to find out why my IAC and MAP wont communicate and i think the PO flocked up the wiring in the connectors, and may be usefull to someone else!
    please go look for me /forums/images/graemlins/thumb.gif
    Rob
     
  2. rick88blaze

    rick88blaze 1/2 ton status

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    Re: 1987\'ish TBI folks, please look at this for me, and match to yours!

    mine has the purple closest to the TBI, then green, and then grey. hope this helps. /forums/images/graemlins/grin.gif

    rick
     
  3. uglychevyZZ4

    uglychevyZZ4 3/4 ton status

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    Re: 1987\'ish TBI folks, please look at this for me, and match to yours!

    sweet. but....... then why o why does the diagram show / say different....GRRRRRRRRRRRRRRRR /forums/images/graemlins/angryfire.gif /forums/images/graemlins/smirk.gifjust my luck, no solution yet /forums/images/graemlins/smirk.gif
     
  4. COCHEV

    COCHEV 1/2 ton status

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    Re: 1987\'ish TBI folks, please look at this for me, and match to yours!

    what driving simptoms are you having?
     
  5. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Re: 1987\'ish TBI folks, please look at this for me, and match to yours!

    Mine is also TB -> purple green gray.

    You need a factory driveablity manual, worth it's weight in gold and available on Ebay all the time. Also look for the "Chevrolet Fuel Injection" book. Very good for this sort of thing.
     
  6. COCHEV

    COCHEV 1/2 ton status

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    Re: 1987\'ish TBI folks, please look at this for me, and match to yours!

    [ QUOTE ]
    Also look for the "Chevrolet Fuel Injection" book. Very good for this sort of thing.

    [/ QUOTE ]

    i second this. great book for trouble shooting and efi theory. can test out most everything with a multigage.
     
  7. uglychevyZZ4

    uglychevyZZ4 3/4 ton status

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    Re: 1987\'ish TBI folks, please look at this for me, and match to yours!

    got it, also the old haynes TBI n EFI book, but after 9 months, no luck finding the problem...still. flawk it, its goin to a shop with a scope.
     

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