Its presenting the same as the first time my ICM went, cept I've swapped in the other working ICM i have and its still missing.
Checked the FPR, replaced. Still doing it yet my O2's will no longer sit at 900 mV for no apparent reason anymore ( see not running rich)
I've noticed if say I hold the car in first then floor it at 4500 it'll run with a nice 5+ psi of boost to redline without hesitation then the instant it shifts its back to its nice chugging.
Backfires at idle since apparently my welded headers are leaking. I'm voting ****ty welds. It wont miss on any cylinder at idle but if you listen you can hear the backfires. Not often but they are present.
I've yet to try the smoke test to see where exactly they're leaking but I've had enough for one day.
And yes, i've changed the plugs, wires, swapped coils around, changed ICM's as previously mentioned.
Brand new 2 month old IAC valve, switched MAF sensors...
Its missing primarily on cylinder 1 when in the gas, yet at idle it'll miss on 1, 3, sometimes 4 and 6.
Thoughts?
Considering going to stock exhaust and running 94 octane instead of 91.
