Godfather | Jay

We did a pressure test tonight and it came out good. It has a wavy MAF and boost curve and lean O2s especially in the higher RPMs. It's not throttle cut. Also, we found a tad bit of oil in the maf when we did the pressure test.

It was 80F, 1050 ft, not sure on humidity.

The noggy had 2 people, 3/4 tank, 2 wheels in the trunk... guessing 4025 lbs.

a bit jumbled in the order... Nogaro is 4th gear... Dark blue, ECUx cut out.... meh...

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my2000apb MEGABOOST

try swapping n75's

EdyJun

IMO Boost and O2 don't look too good.

Godfather | Jay

exactly

Hibiscus Red S4

Boost and O2s certainly aren't good (or MAF down low) but seems more like a boost issue.

B5QShip | CFDQ

at redline even with the car running so lean. I usually have a smidge of oil in my accordian, not sure about MAF housing, but they're both right there.

My best advice: Seems like the lean condition and oscillations might not be related. The oscillations are surely related to the N75, either the unit itself or the wastegate &amp; comp housing connections. Double check those. Maybe try unplugging the maf to see if those O2 values shape up. Though obviously the car will run more rich in CV mode anyway.

B5QShip | CFDQ

This tells me the car is probably getting more air than it thinks. I'd suspect the MAF sensor.

OhioNogaro

It would be good to be able to fix on my own, but may have to make a trip to Vast. It's just far...

B5QShip | CFDQ

That's really something you should fix asap. It's pretty dangerous to run a car hard in that condition.

Godfather | Jay

it was similar to his.