91 Octane
Osmar drag75
91 shell
Shell gas
3 - 11/21/2025
2025-11-21 14_13_40 00005D55506406 b58o1 v2.4 stg2 91_95-1
N52 Supercharger Idle Unplugged O2s
Unplugged Primary O2 sensors after idle started getting unstable
Trying to diagnose unstable idle on a 22RPD Supercharged N52
N55+ 2nd gear pull and 3rd
Still misfire deeper into boost. In 2nd it didn’t as bad but still there.
N52 22RPD Supercharger Idle Issues
Unstable Idle with 22RPD Supercharger on my N52. Willing to try anything, please share your thoughts. Thank you
1. Smoke tested intake and exhaust, no leaks.
2. 2A1A error code stored
3. New OEM vanos solenoids, OEM vanos return valves, Conti eccentric shaft sensor, Bosch precat O2s, Conti MAF, OEM MAP sensor, Valeo Alternator
4. Catch can is VTA
5. Tried unplugging MAF while running -> no change
6. Tried unplugging ESS while running -> car ran even worse
Video: https://www.youtube.com/shorts/mOydAdb3wh8