Hello I'm in need of some help and insight.
I did a log while cruising. I didn't want to do a 3rd gear redline WOT after seeing knocks being recorded on the AP's Feedback Knock gauge. Here's the log:
I just re-flashed my car with Stage 1 91ACN less than a week ago.
I did flash my car before to Stage 1 91ACN v3.0 during the winter months, but had to go back to stock when I had to take the car in to the dealer. During the winter, though, A/F was fairly low adding fuel and taking away fuel averaging within -/+4 and the Feedback Knock was always at 0. Everything looked healthy. I wish I hadn't deleted those logs just so I can compare.
Now it seems to me with this data log those numbers look funny to me. I've been on this map less than a week and just recently filled up with a full tank of gas a few days ago. Is the car still learning and adjusting to the hot weather?
Some things to note:
-2013 WRX with 10,600 miles. Car's engine is stock.
-I filled up the tank with 91 premium octane (full tank) while the tanker truck was also filling the underground tanks. Might this effect the Knock Feedback I am getting?
-I live in Las Vegas where Summer's rolling in and temps outside today have been 75-80 degrees and usually gets dusty on my drive back home. I'm thinking my filter needs to be replaced and MAF sensor needs to be cleaned. Would this effect A/F Learning?
-The knocks seem more active in 5th gear while partially on the throttle and above 2300 RPM (on the freeway).
-Knock does not occur during normal city driving (4th gear) light throttle. Experienced some rare knocks, but I think that's due to shifting and construction and bumps on the road.
-There doesn't seem to be anything wrong with the car though. Drives great, but the data logs worry me.
Thanks for any help or feedback.