Loose Wire Help- Blue single pin with oval connector?? top of manifold
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5.0 and 5.7 Discussion, Loose Wire Help- Blue single pin with oval connector?? top of manifold in Cadillac Engine Technical Discussion; 89 Fleetwood Brougham 5.0, 307, appears to be in harness that goes to computer behind glove box? The blue wire ...
  1. #1
    54Cadillac is offline Cadillac Owners Member
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    Loose Wire Help- Blue single pin with oval connector?? top of manifold

    89 Fleetwood Brougham 5.0, 307, appears to be in harness that goes to computer behind glove box? The blue wire leaves the harness right in front of the carburator. Someone look and see where it goes? I'd really appreciate your help! Yeah, my first post! yahooo! gooogle! Caddies Rule

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  3. #2
    54Cadillac is offline Cadillac Owners Member
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    Re: Loose Wire Help- Blue single pin with oval connector?? top of manifold

    I found out its just a test wire of some sort, no biggie!

  4. #3
    joe_padavano is offline Cadillac Owners Member
    Automobile(s): 93 Allante
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    Re: Loose Wire Help- Blue single pin with oval connector?? top of manifold

    Quote Originally Posted by 54Cadillac View Post
    I found out its just a test wire of some sort, no biggie!
    Correct, though the plastic connector is usually green, not blue. It is used to monitor the mixture control solenoid in the carb when setting the idle mixture. You connect a dwell meter to this terminal and read out on the six cylinder scale. Try to adjust the idle mixture screws to come as close to 30 degrees dwell as possible.

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