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Thread: 87 to 90 7mgte wiring harness

  1. #1
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    Kelby21's Avatar
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    Default 87 to 90 7mgte wiring harness

    I have a 87 supra turbo and when i bought it it had a non turbo engine harness but i have 90 turbo harness and i notice that that the connector to the ecu are different. I want to know if anybody has put 87 connectors on a 90 engine harness and if you have pictures of it so I can get my supra on the road again.

  2. #2
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    Default Re: 87 to 90 7mgte wiring harness

    Need the matching ecu for the harness.

    Also that harness is not going to plug into the body.

    Can be rewired but i wouldnt try using a pre89 ecu with a 89+ harness. 89+ have the better ecu's.

    I wired a buddys car with 90 ecu and harness in his 87. No pics tho.

  3. #3
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    Default Re: 87 to 90 7mgte wiring harness

    Hmmm 87 turbo using a 87 na harness, might want to check again. Probably 87 turbo harness.

    If anyone is interested in having a spinning gif of their car like these pm me and I can make you one.

  4. #4
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    Default Re: 87 to 90 7mgte wiring harness

    He has a 90 turbo harness.. Pretty sure hes asking if he can use the 90 turbo harness with a yellow plug ecu.

  5. #5
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    Default Re: 87 to 90 7mgte wiring harness

    Quote Originally Posted by Kelby21 View Post
    I have a 87 supra turbo and when i bought it it had a non turbo engine harness but i have 90 turbo harness
    The way I read that is that it has a non turbo harness in it not sure the year or if its a miss print or if I am reading it wrong. But anyways better question is why do you want to change the harness. "Don't fix what ain't broken" messing with 20+ year old wiring just because is just asking for problems. But no use a harness and ecu and engine that match don't try to mix.

    If anyone is interested in having a spinning gif of their car like these pm me and I can make you one.

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