Subject	Try this first
Posted by	EUGENE on May 10, 2012 at 1:53 PM
	This message has been viewed 299 times.
In Reply To	Re: Re: Re: I doubt you have to use special wire posted by 91FairladyTT on May 10, 2012 at 12:38 PM
Message	I really doubt you need to run new wire. Do these tests before you waste your time. First, unplug your detonation sensor harness from your ECU harness. To check your signal wire: Attach one lead of your multimeter to the detonation wire at the ECU, inside the car. Attach the other lead to one of the pins in the ECU harness detonation sensor plug. Check for continuity. If you don't have continuity in that pin, try the other pin in the harness plug. Whichever pin has continuity is your signal pin. If neither pin has continuity, you have bad wiring/a short. To check your ground wire: Assuming you found your signal pin, connect a multimeter lead to the other pin in your detonation sensor plug on the ECU harness in the engine bay. This should be your ground pin. Connect the other multimeter lead to a ground point (a metal part of your plenum is fine). Check for continuity. If you don't have it, your ground wire is bad. If both wires have proper continuity readings, your ECU harness wiring is probably fine. Try swapping the two wires in the plug. If that doesn't fix the problem, I'd suspect your new sensor, your new sensor mounting/grounding, or your subharness.
Follow Ups	How can I rewire knock sensor from subharness plug to ECU?? - 91FairladyTT 11:09:51 05/10/12 I doubt you have to use special wire - EUGENE 11:26:35 05/10/12 Re: I doubt you have to use special wire - 91FairladyTT 11:34:58 05/10/12 Re: Re: I doubt you have to use special wire - EUGENE 12:00:18 05/10/12 Re: Re: Re: I doubt you have to use special wire - 91FairladyTT 12:38:13 05/10/12 Try this first - EUGENE 13:53:34 05/10/12 ^ this - fuzzymonkey 12:45:27 05/10/12 I thought I remembered reading there was an update - Draker (Eugene, OR) 13:04:24 05/10/12 Re: I thought I remembered reading there was an update - 91FairladyTT 13:51:09 05/10/12 Good luck! Let us know what works, I'm fighting a 34 too. (n/m) - Stokens (StoMoZTT) 14:22:08 05/10/12 The knock sensor circuit is very sensitive! - OverZealous (CT) 21:15:16 05/10/12 Re: The knock sensor circuit is very sensitive! - 91FairladyTT 09:44:03 05/11/12
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