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Detonation / knock sensor wiring

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  • Detonation / knock sensor wiring

    I recently bought an 86 Turbo that is not running well. It is hard to start when cold, and then idles poorly or not at all when warmed up. I am stepping through the troubleshooting guide in the FSM.

    In reading the codes, it gives me:
    14 vehicle speed sensor
    23 idle switch
    24 neutral switch
    31 load circuit
    34 detonation sensor

    I adjusted the TPS. In researching the detonation sensor, it looks like it may be unplugged (see attached photo). I think the previous owner has messed with the wiring. Can anyone tell me where I should be looking for the female end of this plug? And/or what it might look like?

  • #2
    iirc, the detonation sensor is a single wire that has a pinch&pull white plastic shroud that acts as a strain relief and locking mechanism to keep the bare terminal in your photo secured into the sensor.
    I think the whole thing is covered by a large grey vinyl boot, like the oil pressure sender.



    84 AE/Shiro #683/Shiro #820/84 Turbo

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