BigTex

iTrader: (16)

This has me asking a question: - Do the 1999 trucks have a different knock sensor part number than the newer models?

It has been stated before that the 1999 year model has less torque management than the 00+ models, but from what I've seen, the 99s suffer from knock more than the newer years. Could this be GMs offset for less TM? hmmmmmm.... Time for a little research.

hyde

Here is what you are looking for to desensitize the knock sensors....Your welcome...http://users.ev1.net/~ynot_dv8/KOBox.htm

really slow truck

hyde, what parish did with the resistor is the same thing that tony's knockout box does, his just may be a little easier to install (wiring harness)

Nine Ball

iTrader: (38)

My KO-Box is not simply wiring resistors in series with the K-sensors. I have designed it so that the PCM doesn't know there are any resistors inline, and all of the measured resistances remain the same as stock.

-Tony

hyde

Thanks for the help Tony, i was trying to push your product...how nice of me...How much are they any way...I believe that Mr.Mix need one really bad...

MR.MIX

I don't think that they will fix my knock problem!!!Ouch <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

really slow truck

oops, my bad <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />

*crawling back in my cave* <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

parish8

iTrader: (6)

http://www.charm.net/~mchaney/f-tech.htm

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

i used the info from those 2 sites to desensitize my knock sensor 25%, the resistors cost $.99, the method uses 2 resistor one in series and one in paralle so the computer doesn't see any change but the signal is reduced. only problem i see is that there are conflicting values given in the info on those sites, for a 25% reduction one place it says a 25k and a 500k but in another it says 25k and 300k. i may not need it at all once i retorque my knock sensor.

parish8

iTrader: (6)

well... i dont think it was over tight knock sensors, i just checked them and they were real close(13-14 ft-lbs) to the 15ft-lbs specd. i guess i will go out and make some runs and try and decide what to do about the knock retard. there is alot less so i may do nothing but watch it for awhile. not sure how much i want to desenatize the knock sensors.

hyde

Dump truck.....hush....You need to settle down now. I was putting that there for others to see also. Just unplug the knock sensors...F*ck it.... <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />