skratch77

Pretty sure it's the air boxes. I just put non row and my trimes are -4.7 to -5.5 at idle and with carbonio they were plus 45 ish on both banks

BLKROKT

I had the same experience with the Carbonios. Made incremental power, a tiny bit better than ROWs, but the fuel trims were off the charts.

Jasonoff

Anyone ever clean the MAF and or MAP sensor(s) yet? I'm up over 147K km (91+K miles) and have never done it yet. Noticing some slight hesitation on cold start after going from R to D first backing out of the driveway.

Plugs were done at 100K km. Primary O2s not that long ago.

Could also be a minor vacuum leak.

BLKROKT

91k miles? Just buy new ones, it’s easier. Then you won’t ever have to worry about them again. Cleaning them is rarely a permanent fix.

Jasonoff

Fair play, just wanted to get feedback first.

I have done zero diagnostic work so far. Just curious if anyone has mucked with them and seen positive results.

ShaneN.

Same question, I didn't see you directly answer it. If you weren't running one, would a catch can have prevented this? I ended up bending over to pay for my weistec can about 6 months ago because of threads like this.

BLKROKT

^^^

ShaneN.

ah, I just saw this as a reply, oops.

So if it was only off for about 3k miles clearly the catch can wouldn't have helped. I got my answer.