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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

How do you fool a knock sensor?? Need some electrical help

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Old Aug 13, 2008 | 01:55 PM
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SledgeHammer's Avatar
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From: Northeastern Ky
How do you fool a knock sensor?? Need some electrical help

Ok Guys here it is the only code I'm gettin on my 3.0slow is code 52. So after reading all the posts on here about bad wires and everything else I started to check the wires going down to the sensor and they were very brittle but looked hooked up. So I got to movin them around a little and discovered its not even hooked up under there. So what can I do to fool this thing into thinking it is still hooked up? I'm just not willing to pull the intake just to put it back on after all it has 174,000 on it. Got any Ideas like on the egr resistor trick?
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Old Aug 13, 2008 | 03:17 PM
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From: Temecula Valley, CA
you don't fool it.
it is a piezo-electric transducer that responds to high-pitched sounds from the engine and sends a signal to the ecu. the ecu expects to hear something from it and if it doesn't, throws a code.
even when there is no knock, there is noise picked up by the ks, and the ecu needs to hear that too.
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Old Aug 13, 2008 | 06:27 PM
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From: Camino, Ca
Dont try and fool it. It prevents damage to your motor. Try to eliminate it and you are asking for trouble
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Old Aug 13, 2008 | 07:17 PM
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This kinda stuff is new to me. As far as damaging the engine I'm not the least worried about destroying that turd of a motor. Might swap the motor out any way.

Last edited by SledgeHammer; Aug 13, 2008 at 07:37 PM. Reason: forgot something
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Old Aug 13, 2008 | 08:34 PM
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From: Camino, Ca
In that case, why bother with it at all? Run it into the ground then put a 3.4 in it
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Old Aug 13, 2008 | 08:57 PM
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From: Temecula Valley, CA
if you lived closer to me, I'd give you a few feet of LMR-200 cable you could use to replace the cable.
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Old Aug 13, 2008 | 09:06 PM
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From: Northeastern Ky
I've got a 302/c6 ford out there just looking for a new home. I'm still weighing all my options.
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Old Aug 13, 2008 | 09:11 PM
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302 in front of a C6?... interesting....
that's like finding a 305 in front of a TH400.

Last edited by abecedarian; Aug 13, 2008 at 09:12 PM.
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Old Aug 13, 2008 | 10:07 PM
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From: Vancouver, BC
Originally Posted by abecedarian
if you lived closer to me, I'd give you a few feet of LMR-200 cable you could use to replace the cable.
That's nice, but a new wire from the dealer was around ten bucks last time I bought one, and came with the connectors and stuff already installed Of course, that doesn't include the intake plenum and manifold gaskets.
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Old Aug 14, 2008 | 07:49 AM
  #10  
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From: Northeastern Ky
Hey thats the way I got the motor and trans. I would rather go with the t-5 on there or the very least an AOD with a lock up converter. I've got a 3.0 camry engine sitting in the floor. I'm thinkin about robbing the ks off of it and see what happens when I just attach it to the side of the upper plenum somewhere.
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