I did a search about desensitizing the Knock Sensor, and basically what I got was a bunch of poeple talking about by passing or desensitizing the KS. I read that its bad to bypass it, and thats it better to desensitize it.

thing is i want to know WHY would you desenz it, and when you do, is it completely obsolete? does the ECM never depend on it after that? or just a tad bit?

I ordered a chip for my swap, and when I put it in and restarted the computer my ses light was still on, still code 43. but, wow, the power it has is insane from before. It runs like a champ. When i filled out the info for the chip, it asks if you want to desenz the KS, and it said (recommended) so I chose to get it desenz in the options.

So my questions is this. should I still replace it? I dont want to drive it if its going to do damage and would rather just replace it. I know its not hard but i was under the car for hours and i couldnt get the KS off, and was starting to ruin the edges of the end.

From what I know, the if the KS is bad it will advance timing and dump fuel and make it run rich, and the engine will run poorly. but like i said, it sure does seem fine, lots of power on demand so im confused...

 

dang, no one knows huh?

also, I think that maybe the knock sensor maybe failed and its sending the code. so im assuming that since there might be NO KNOCK but the sensor has failed, there will be no substantial damage to my engine, at least im hoping so...

 

Patience, Patience! It's only been 2 hours between posts - most folks are at work, have wives/g/f's, kids, yards, cars of their own. It may take a few days even to get good answers. But - you are getting what you paid for!

 

actually, if you look it was a full 24 hours between posts.
and also, what am i getting that i paid for?

the main reason why i posted is because im also trying to solve the problem on my own and as well, to document it in case i do find the solution...this way, if someone runs in to the same issue, they can maybe do a search or something and not have to go through the pain i am going through

 

Because stock it is too sensitive and can detect "false " knock that is not there resulting in poor performance.When desensitized in the tune it is still fully operational but only activated at higher levels

Maybe your KS or wiring to it is bad

When the KS is activated it pulls out timing ( retards the timing ) to prevent you blowing up your engine.

 

i see. and after I got my tune with my order chip, it runs awesome, real good and doesnt skip a beat at all rpm levels.
it just worries me, and i want to take the KS off and replace it, but its screwed in there good and i was starting to round off the corners on the KS so i stopped before i get past the point of no return. im sure i can get some channel locks in there, but theres like NO room, so id have to take the starter off i think, and it just seems like it will get real deep (agenda wise)

im sure its bad, and i have no idea what can create knock, as far as listening to it by ear. i dont really hear anything out of the obvious. i read in a search that aftermarket header noise can detect false knock, but that seems weird.

then when it my engine gets up to operating temp it starts bogging down, and gets up to 240&260. but i think that is a seperate cooling issue and dont really see how it can be linked to the KS messing up.

thanks for the info byw

 

I just changed out my Knock Sensor and ESC module for a code 43 fault to no avail, which leaves wiring, ECM or something wrong in the engine. Anyway, when I swapped it out, I had to remove the starter to get channel locks in there as center started to spin when I used just the wrench on it.

 

well, looks like im screwed now. I took the stater off and tried to get in there to take the KS off. mother ****er ended up breaking off completely. the threads are still stuck in the block, however. so know im clueless. I tried to run a tap in there, it broke.
Im seriously out of ideas, and have no idea what else to do. as far as im concerned, its ruined now. unless i just dont run a KS at all, but wouldnt i have to bypass it somehow? or can i just run the engine with the KS not connected?

this is a nightmare, for real. im so done with this car..