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Thread: 4age 20valve TPS wiring

  1. #1
    Junior Member Grease Monkey TRD-12A's Avatar
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    Default 4age 20valve TPS wiring

    ok i have a 16 valve 4age running a microtech which ive put the quad throttle bodies onto now my 16 valve TPS wont work because its spinning the opposite direction to what i need it, i was given a 20valve TPS with the manifold they look the same just spin in opposite direction to each other.

    theres four wires yellow, brown, red, and blue does anyone have the wiring diagram for the 20 valve TPS or has someone done this conversion? Thanx in advance

  2. #2
    Jack of all trades Domestic Engineer mattysshop's Avatar
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    Default Re: 4age 20valve TPS wiring

    100% correct, you need to use the 20v TPS - just wire it backwards to the 16v

    i had to do this to my 16v, running 20v quads and 20v TPS, and stock 16v ecu/wiring..

    20v tps side > 16v loom side

    brown > yellow
    Blue > red
    Red > Blue
    Yellow > brown

    my write up i did a few years ago can be seen here... although the pics don't work anymore, and i probly would have run vac lines differently with the stock map sensor, and made a proper idle control... but when i did this... nobody else seemed to get one to run with the stock 16v ecu, and told me aftermarket was manditory... i was driving it daily for 6 months before going to adaptronic, ditching the map sensor, and using an RPM vs TPS tune..

    http://www.twincam.org/topic/26291-d...s-on-16v-4age/
    Last edited by mattysshop; 11-11-2010 at 06:39 AM.

  3. #3
    Junior Member Backyard Mechanic
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    Default Re: 4age 20valve TPS wiring

    So having said that, a tight arse could run a 20v head, quads and a gze wiring loom + ecu for a low boost application?

    Kinda weighing up the option of 16v low boost vs 20v

  4. #4
    Junior Member Grease Monkey TRD-12A's Avatar
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    Default Re: 4age 20valve TPS wiring

    thanx man only problem is im running the microtech lt10s with 4xignitor box, the microtech only has three wires for the TPS so would you happen to know what the colours are for?? (eg: yellow 5v+, brown -, red signal, blue whatever)

  5. #5
    Junior Member Grease Monkey TRD-12A's Avatar
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    Default Re: 4age 20valve TPS wiring

    ok have worked it out for anyone thats running quads with a microtech
    yellow-0v earth
    red- not used
    blue-signal
    brown- 5v+

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