What would cause a high knock level. Tried shell optimax, welbro but power fc is reading high sometimes 130 knock. Afr is barely going past amber. Anyone got any ideas

 

WOW 130 is mega high fella,I sometimes have seen 30 which I consider to high,most of the time I don't get above 10.
MIND that said I do run a KS3 knocklink and I have never seen above 8 on that.

You must have ignition problems[ie to advanced or retarded] to have that much knock surely?

 

Who mapped it? Could even be a dodgy knock sensor.

 

Set as per the KS3 recommendations, a figure of 8 is telling you nothing! Set correctly, that would indicate a very ordinary, gentle driving background mechanical noise level. With the Hz set at 6 and gain at 10 I set my alarm to trigger at 45 but a sudden crack of det would see 85+ Operating the starter motor will see a reading in the 30's

JohnD

 

When i had mine mapped at scooby clinic by Pat he said above 60 and there is something wrong, so i guess you better have that looked at chap otherwise it's going to be expensive, and i would take it easy in the mean time..

 

Highest I have seen is 25 on mine at full tilt, and my engine bay is proper noisy with the amount of stiffening going on. I am surprised yours is still running tidy after knocks of 130 !!!

 

Or it's telling me I don't have much engine noise and very little det as mine is running as per instructions also.

 

Whats changed since this knock reading ?