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Thread: Yellow and Red wires in a plug????

  1. #1
    Junior Member
    92ma71's Avatar
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    Jun 2011
    Elizabeth City, NC

    Default Yellow and Red wires in a plug????

    I have a 89 Supra turbo Manual Transmssion.

    Underneith the intake manifold coming off the main harness is a grey male plug with 2 wires. one of the wires is red and black or black and red and one is yellow.


    Also Im not getting any voltage to the ecu at the IGSW pin. I can also remove my Key with the key in the on position.

    The reason Im trying to figure this out cus I am getting no fuel or spark.


    Last edited by 92ma71; May 13th, 2012 at 03:37 PM. Reason: added info

    92 7mgte. 560cc injectors, lexus afm, AEM tru boost 15PSI, AEM wideband, Intake, Full cooleaze 3 inch exhaust, test pipe, mk4 rims, HKS TEMS controller
    89 7mgte- SOLD
    90 7mgte-SOLD
    85 celica gts convertible- 5speed swap, 22re, ongoing project for years.
    66 galaxie- 302ci another ongoing project
    98 5.9l jeep- full intake, exhaust.
    2001 chevy 3500- sh%t hauler.

    Just Added to the collection-

    89 Turbo- Soon to be 2jz
    86 MK2- Soon to be turbo

    U.S ARMY

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