Does anyone know how to "de-sensitze" a knock sensor? Or to remove it all together? I've read on numerous different forums that adding 1.6 roller rocker's causes the knock senser to retard the timing because the sound of the RR moving makes a "ticking" noise which is the same frequency as "knock". The sensor " then pulls out timing (kills power) because it thinks the engine is knocking when it's not. I've also heard that having too loud an exhaust system (is that even possible ) will also cause the knock sensor to get wrong readings.
I already upgraded to an LT4 Knock sensor but I want to remove it all together now.

Has anyone here done this on there LT1?

 

Kaboom

 

Uhm... Thanks. Not quite the helpful and informative response I was looking for, but thanks for taking the time to respond to my post anyway
Seriously though, I know that there's the possibily that the knock sensor MIGHT save my engine one day if I'm actually getting knock, but what happens if, like I said above, the knock sensor is picking up false reading's from 1.6RR's and louud exhaust system and is pulling out timing? I can't just leave it like that. The reason why I'm asking is because my car pulls like a bat out of hell between 1st and second but halfway into 3rd it kind of just dies out.
After I had iinstalled the LT4 knock sensor there was a a VERY noticable improvment in the top end but I'm still pretty sure the sensor is still pulling out timing.

 

the lt4 KM is the only option i know of.

 

just get you a potential meter from radio shack and hook it up to the knock sensor wire.

disconnect the knock sensor.
ground one side of the meter and hook up the knock sensor wire to the other side. adjust the meter until it gets to bout 2.50v and lock it.

the meter will work as a dummy sensor and never move voltage.

 

I assume when you said LT4 you were reffering to knock MODULE. The module and sensor are too different things. Just have someone with Lt1 edit desnsitize it and limit your max reatard to something like 5 degrees. This way you wont be losing that much power, but will still have some true knock retard capabilities.

Brandon

 

The guy who asked the question has a 1993..... so he can't use LT1_Edit, and he can't use the LT4 KM.

I'm also a little confused by his claim that he installed an LT4 knock sensor, because there is no such thing. The 1996 Corvette LT4 used the same knock sensor as the LT1. And the 96/97 knock sensor is 100Kohms, and not compatible with the 93-95 knock sensor at 4.5Kohms.

There are online instructions for a knock desensitizer circuit. Before installing something like that, and maybe increasing the risk of not picking up true knock, why not put a scanner on the car and find out if your mods are actually causing any knock retard. If there is no "false" knock, desensitizing (or completely bypassing) the knock sensor wouldn't make any sense.