wWhats causing knock?

[blazinblue]

im getting some knock at WOT cant find whats causing it?? it seems my timing is about right, its a 6.0l with a cam

[wesam]

Your spark table is horrible
Also you low octane is higher than the high octane table
there is some thing wrong with your MAP sensor it shouldn't read that low while in WOT
also you should use a wide band to check AFR

[joecar]

If MAF sensor is reading low, then PCM computes cylinder airmass low, this causes spark table low load area to be looked up (timing will be too advanced for WOT).

[wesam]

Joe i think the CYLAIR is reading in the right place ~0.68 in the log so its not in the low load area

[wesam]

13878You can try this file

[joecar]

Joe i think the CYLAIR is reading in the right place ~0.68 in the log so its not in the low load areaYes, you're right.

[blazinblue]

Yes I know the timing table is a mess lol I was trying different timing numbers to see if that was the problem.

Wesam I will try your tune later on today. Hopefully its just false knock I'm also on 91 Oct highest you can get here.

[Jester]

I don't think it's false knock, going on too long. Also your inj D/C hits 90%, a bit high for my liking anyway. Definitely get a wideband on it if you can.

[joecar]

The HO2Sx1 voltages indicate you're lean at WOT, especially bank 1 (it looks like it may have an air leak).

The KR waveform looks sawtoothed but is too spread out to look like real knock

[APS Luis]

You still have burst knock enabled - you need to be logging that to see if that is the source of KR