some knocks, bad AFR? LSJ 2007

[carlos]

i have some knocks when i start to drive, what could it be?, bad AFR?
this is my tune and log.
thanks in advance.scan.hpltune ss.hptmine.cfg

[CCrunner84]

What's going on with your trims, they seem to be all over the place. Is this a stock tune?

[carlos]

yes its the stock tune white little changes, just more fuel and spark tables

[CCrunner84]

Are you making these changes based on sensor feedback, or just adding fuel? It appears you richened it up for sure, but the ECU is just pulling it right back out via trims.

[MarkTucker]

I would start off by putting your low octane spark table back to stock or slighty modify the stock table. Do not copy and paste high octane table to your low octane table.

Then I would focus on dialing in your MAF Calibration table. You need to get your fueling dialed in properly. Fuel trims are a bit everywhere right now.

Then see how the car acts.