Knock Sensor Engine Light
 

Well ever since I've owned this '91 gs-t it has thrown a CEL for the knock sensor. I replaced it twice and checked the wiring/plug. I just can't seem to figure this thing out. It is causing an extreme high knock count resulting in piss poor performance. It does this about 75% of the time and only after it has gotten up to operating temp. It even shows 43 counts of knock during deceleration. What could be causing this?! Thanks

Re: Knock Sensor Engine Light
 

Are you properly installing the knock sensor (ie- following recommended torque specs)?

Re: Knock Sensor Engine Light
 

I don't have the proper tools to get the exact torque on the sensor but i've tried multiple different amounts of torque with no change in the outcome.

Re: Knock Sensor Engine Light
 

I don't understand what you're saying here. You don't have the proper tools to get the exact torque but have tried different torque amounts? Are you evening using a torque wrench?

Re: Knock Sensor Engine Light
 

What has been suggested to me was to finger tighten the knock sensor, then using a crescent wrench, tighten it I believe a 1/4 or 1/2 turn to have it roughly torqued at the 10 or 12 ft-lbs it needs. Thats what I have done with mine, and it works fine :) Could you have serverly noisy lifters?

Re: Knock Sensor Engine Light
 

It's not possible to use a torque wrench without a proper socket to tighten it since the wire comes out the top of it. And the 1/4 to 1/2 turn is also what I have heard which is what I have tried. I suppose I could have very noisy lifters but why would that cause the CEL.