Knock Control (Datamaster Run Inside)

Slow-Clone

Slow-Clone

Snow-Clone
Re: Knock Control (Datamaster Run Inside)

Possibly false, could be a number of things, torque converter noise, exhaust leaks, exhaust touching frame/firewall, worn out ignition, old gas, low octane...
 
Bustedsm

Bustedsm

Numbered Car Crazy
Re: Knock Control (Datamaster Run Inside)

93 octane, fresh gas, new plugs/wires/disty.

I'm pretty sure it is false knock but what would be the best way to relieve myself of this annoying pest?
 
SuperSy

SuperSy

New member
Re: Knock Control (Datamaster Run Inside)

I'm having the same problem, I get up to 10-12 * spark retard running 100 octane gas. I suspect it's false knock but I can't isolate it. I tried shoving a piece of rubber hose between my fuel lines and transmission to try to keep my lines from banging into my knock sensor, but that didn't help. I noticed that my IA temps were very high, in the 170* range. I am manually controlling the boost to 14 psi. If I drop it to about 9-10 psi the KR drops to the 3* range, but I should be running like a bat outa hell with 100 octane. I'll keep trying different things and I'll let you know what works.
 
Bustedsm

Bustedsm

Numbered Car Crazy
Re: Knock Control (Datamaster Run Inside)

SuperSy said:
I'm having the same problem, I get up to 10-12 * spark retard running 100 octane gas. I suspect it's false knock but I can't isolate it. I tried shoving a piece of rubber hose between my fuel lines and transmission to try to keep my lines from banging into my knock sensor, but that didn't help. I noticed that my IA temps were very high, in the 170* range. I am manually controlling the boost to 14 psi. If I drop it to about 9-10 psi the KR drops to the 3* range, but I should be running like a bat outa hell with 100 octane. I'll keep trying different things and I'll let you know what works.
Click to expand...

I'm going to start with replacing the knock sensor, it's a 155,xxx mile truck so I'm sure it might need replacing.
 
SuperSy

SuperSy

New member
Re: Knock Control (Datamaster Run Inside)

It may just be over-tightened, the torque spec is 14 lb/ft.
 
WyoSyclone

WyoSyclone

Active member
Re: Knock Control (Datamaster Run Inside)

SuperSy said:
I'm having the same problem, I get up to 10-12 * spark retard running 100 octane gas. I suspect it's false knock but I can't isolate it. I tried shoving a piece of rubber hose between my fuel lines and transmission to try to keep my lines from banging into my knock sensor, but that didn't help. I noticed that my IA temps were very high, in the 170* range. I am manually controlling the boost to 14 psi. If I drop it to about 9-10 psi the KR drops to the 3* range, but I should be running like a bat outa hell with 100 octane. I'll keep trying different things and I'll let you know what works.
Click to expand...

Your IAT temp of 170 is your main problem.... shouldn't be above 125 at the end of a WOT run, if the IC system is working correctly.
 
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