Turbo 4.8 Max Knock Retard Normal Driving

[4.great_cobra]

Hey all you tuners, I'm getting maximum knock retard (-8 deg) randomly at low speeds, despite never getting more than 1 or 2 degrees of KR at WOT. It's a 4.8 with a sloppy stage 2 cam and single gt45 turbo, intercooled, and probably worth noting it's on the original knock sensors. This is my first time tuning a boosted engine and aside from WOT and idle, I really don't know what timing advance numbers are typical. I've actually pulled tons of timing out of the thing and I think its really soft on timing (when compared to some tunes from the sloppy mechanics tune file cabinet) yet I still have this problem of KR pulling 8 degrees when driving around normally. I've attached the tune and a log of me just driving around my neighborhood getting tones of KR. This is with 93 octane pump gas by the way.

12-26-20 Neighborhood Drive Knock Retard.hpl

Cobra 12-26-20 Turbo VE edit14 idle airflow changes.hpt

Any help/advice is much appreciated!

[5FDP]

Is there ever a pending knock sensor code?

If there is, that could be a reason why. You'd have to read the codes when the issue happens to see if it's in the history as pending.

A simple test is to just disable the two knock sensor codes.

[4.great_cobra]

Thanks for the suggestion, I'll give that a shot and report back with what happens. You're the man! Always the one who replies to my tuning woes with helpful ideas lol

[4.great_cobra]

Lo and behold it didn't do the random 8 degrees of KR thing again, and didn't throw any codes. Seems to be an intermittent issue, but I log pretty much every time I drive it so I'll be sure to check for codes next time it does it.