Missing and Stalling at idle.I've Spent 2,000$+trying to fix. Its Cursed HELP!

[redsx13]

Originally Posted by SoguRacing

maybe your car is running lean. by a bottle of propane and attach it to the intake manifold port and slowly increase the amount of propane and see if the engine doesn't miss anymore.

i thought it was running lean too, so i dropped 250$ on an AEM wide-band A/F ratio gauge. 14.2-14.8 at idle, it will run around 11.0 when i unplug the o2, when i do this it actually stops missing too.