bmxer882x

Ok after a ton of diagnosing I've finally found something that fixes the motor. It's a sr20det with mainly bolt ons. Running a rs enthalpy j4 ecu.

While the car is idling it has a slight miss, idles right at 800-900 rpm fluctuating with the misfire. If i hold it at 3k rpm you can definitely hear the miss. However, if I unplug the o2 sensor it stops misfiring. If I hold it at 3k it runs steady as a rock. Idle sits at roughly 1300 or so. WOT is fine either way with no misfires.

Going to check the wiring tomorrow. Its a new sensor (under 200 miles). Anything else I should check? Also does anyone know the normal resistance in the o2 wiring? I checked the fsm and couldn't find anything.

cotbu

1300rpm is a stupid high idle, ok!
You probably have a vac leak and the mixture is now off, aka misfire! Thats the short and stupid version no fix involved

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bmxer882x

It runs perfect with the o2 unplugged. Also I've boost leak tested it at 30 psi and it holds. There are no vac leaks.
I just need to know what sensors it ignores when you go into open loop