From what I have heard some knock is ok, supposedly if your getting knock at WOT its bad.......the gear heads will be along to give you more informative info though5point7 said:Is a little knock retard okay? At about 30% throttle, I'm getting 0.53 Knock retard.
ONCE in a while it will get past 1.0
cool that was a great explaination, I never fully understood it, now i do.Blitzu said:Knock retard is not bad for the motor, knock reatrd is the preventative measures taken by the PCM to control engine knock.
.53 degrees of knock is nothing at all... it is most likely false knock. False knock could be created from a gear shift... or some suspension bumping against the trans or motor. Just some examples. Low octane could produce knock, bad gas could produce knock. So seeing .53 degrees is not going to do anything. The point where you would want to start really paying attention is when you start to see 5 degrees or more. It is important to also see where the knock degree is occuring.
Is it right at launch and then goes to 0 quickly? Does it show the knock when you let off the gas after a WOT run? Or does it slowly climb or get worse as you accerate and stay there until you let off the gas?
That is the type of knock to be worried about. The back fires from my exhaust when I would lay off the gas would create sparks of false knock. I wasnt worried about that.
Knock retard is just pulling degrees of timing until the knocking sensors stop hearing the unusual noise.
If you ever see a degree or two of knock try for sh*ts and giggles a bit of 100 octane to see if that cures it, if it doesnt it may just be false knock.
Another thing to point out is if you see 0 degrees of knock all the time thats not neccesarily a good thing. I usually advance the timing until I see knock and then I stop.... I like to see a degree or two so I know I am at the max of what my motor can handle. Just so that there is not any unused power.