jamesbob02

I think my knock sensor is too sensitive and is being falsely tripped. Also, I just learned there is also a knock module. I want it to only pick up the real knocks so the ECM will work right, and I heard of people replacing either the sensor or the module with ones from an LT1 or LT4 but I dont fully understand all of it. Could some of you please explain this subject to me and what I need to do to prevent false knock counts? Thanks a lot.

jamesbob02

TTT

Anybody??

Jproz1167

iTrader: (3)

jamesbob

I think my knock sensor is also picking up noises it should and its hurt my performance, I think I'm going to buy a resistor and by pass the sucker, seem like everytime my headers make racket the car rus poorly and since it's not a racing car I highly doubt spark knock will be a issue

Jproz1167

iTrader: (3)

oh and by the way, the spark module is intergrated into the ecm

jamesbob02

I dont want to bypass it, because I still feel it has some value in that if my engine is really knocking, the ecm should adjust for it instead of letting me blow the engine ya know (j/k), but I would like to know how to make it more accurate or replace it with something that would be. Can anybody out there help me with this? Thanks.

Jproz1167

iTrader: (3)

jamesbob

here is a link on how to desensitize it

http://www.geocities.com/MotorCity/6647/ta93/knock.htm

TRAXION

For 90-92 ECMs the knock module sits on the MemCal above the network resistors (Netres, aka Limp Home chips). It is not replaceable with a module that is less sensitive.

You have 3 choices for desensitizing ...
1) Use the resistor method posted above
2) Wrap the threads of the sensor with some teflon sealing tape.
3) Change the knock attack rate parameters via a custom chip.

The third method isn't technically a desensitizing but it can yield some ok results.

Tim

jamesbob02

Using that link, what is the proper desensitization percentage for my type of application - I want it to be more accurate, basically, but I don't want it to be disabled or miss actual knocks. I figure somebody who knows more than me can give me a good figure to work with; thanks!

jamesbob02

Anybody?