disable knock sensor - Third Generation F-Body Message Boards

rock861261 · 05-11-2009, 01:56 AM

i am new at tuning my 91 sd and am trying to disable the knock sensor in tuner cat can anyone tell me which values to change?

WASyL · 05-11-2009, 03:44 AM

go to Tools->ECM Swich Table and remove swich for code err 43 Knock Diagnostic

best regards

rock861261 · 05-11-2009, 04:36 AM

Quote:

Originally Posted by WASyL

go to Tools->ECM Swich Table and remove swich for code err 43 Knock Diagnostic

best regards

i dont have that in my tunercat

WASyL · 05-11-2009, 04:47 AM

sorry, i havn't notice that You have 91 SD, i do not have def file to check that

best regards

GTA matt · 05-11-2009, 09:34 AM

I set my "maximum knock retard" to 0. Before I had tunerpro i bought a potentiometer, wired it to the knock sensor wire and then to ground and set it to 3500 ohms. hope this helps.

dan0617 · 05-18-2009, 10:54 AM

The only way that I managed to completely eliminate the knock retard system was to cut the brown wire where it goes into the knock module. I put plugs on it so I can plug it back in if I want. This is on an '89 with MAF though, not familiar with SD so yours might be totally different.