cold start relay
It's an air bypass, so closed, or screwed all the way in is rich and opening it up leans it out. Kind of like carb idle screws, I'd start at 3 turns out and go from there. See where it idles best, then start turning it in some until it starts running a little ragged. Back off it a little bit. Or take it in and use a CO analyzer, but I don't have one of them.
Mike W.
02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.
02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.
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Vintagemotorwerks
- Posts: 90
- Joined: Fri Jun 26, 2015 3:29 am
- Location: Fresno, CA
I wouldn't turn that screw if I were you. The issues lies within the AFM electronics. The screw is only for idle adjustments. The contacts are not sending information to the ecu so it doesn't know how much fuel to send. I was able to source an AFM off of eBay for $30 from a salvage yard in San Bernandino, CA
