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Thread: 22R to 22RE - ECU/Wiring Diagram

  1. #1
    Forum Member 1st year Apprentice
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    Default 22R to 22RE - ECU/Wiring Diagram

    I'm considering fitting the injection setup from a 22RE Corona Avante to my 22R powered Bundera. I've found a guy close by selling everything I need for the conversion at a good price. Only prob is, all the info online seems to be for 3 plug ECUs from later model 22REs, whereas the seller tells me his has only 2 plugs.

    Anyone have any ECU pinouts or wiring diagrams for the Corona Avante?

  2. #2
    Junior Member Automotive Encyclopaedia Spectre's Avatar
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    Default Re: 22R to 22RE - ECU/Wiring Diagram

    Crack open the ECU case, the pin outs should be printed on the board.
    Quote Originally Posted by CLG
    It's a good system in theory, but it's fucked.

  3. #3
    Junior Member Grease Monkey turbo ke20's Avatar
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    Default Re: 22R to 22RE - ECU/Wiring Diagram

    he would only have the two plugs that are attached to the engine harness. The third is the one which comes from the dash harness. It has the power supplies, dash lights etc...
    so without it you got nothing.

    22RE also came in the RA65 celica if you cant get any info on the corona.
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  4. #4
    Forum Member 1st year Apprentice
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    Default Re: 22R to 22RE - ECU/Wiring Diagram

    Quote Originally Posted by turbo ke20
    he would only have the two plugs that are attached to the engine harness. The third is the one which comes from the dash harness. It has the power supplies, dash lights etc...
    so without it you got nothing.

    22RE also came in the RA65 celica if you cant get any info on the corona.
    Hey guys, thanks for the info.

    I've confirmed with the seller that it definately only has two plugs, not three. Eg, there are physically only two plugs on the ECU. I am getting the feeling the 22RE setup on the Corona Avante might be a slightly different version.

    In any case if I don't get the factory ECU/loom sorted out there is nothing stopping me going a megasquirt ECU. I just want a better setup for steep inclines offroading and any fuel economy gains will be icing on the cake.

  5. #5
    Forum Sponsor Carport Converter TurboRA28's Avatar
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    Default Re: 22R to 22RE - ECU/Wiring Diagram

    It's easy enough, i wired up a mates 22re bundera with a 2pin 22re ecu.
    Like mentioned the pinouts are on the circuit board. If you write those down then reference them against whatever wiring diagrams you can find.
    What you cant work out, we can help with

    We had some troubles with the 22re efi inlet manifold hitting the clutch master cylinder. Had to find a smaller one from another car.
    1977 RA28 Celica - 1MZ-FE Members Rides
    1996 FZJ80 Landcruiser.
    Email : joel_fitzgerald@hotmail.com

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    Forum Member 1st year Apprentice
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    Default Re: 22R to 22RE - ECU/Wiring Diagram

    The plot thickens! Any idea what the donor was for master cylinder? I guess I'll be stopping off at a wreckers with a tape measure one day after work this week

  7. #7
    Forum Sponsor Carport Converter TurboRA28's Avatar
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    Default Re: 22R to 22RE - ECU/Wiring Diagram

    PM ToyT18 on this forum, he knows what it was from as it was his car we did the conversion on.

    Cheers
    Joel
    1977 RA28 Celica - 1MZ-FE Members Rides
    1996 FZJ80 Landcruiser.
    Email : joel_fitzgerald@hotmail.com

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