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Mike_L Mike_L is offline
Posts: 1,874
Join Date: Jun 2014
Car: 2021 M550i xDrive
Default 08-16-2020, 09:41 AM

Now its throwing codes on every cold start. Tells me reduced power, and the codes are 0236 and 2227, both come up No Description Found.

I looked them up, and P0236 is Turbocharger Boost Sensor A Circuit Range/Performance, and P2227 is Barometric Sensor Circuit Range/Performance.

So the 2 sensors we tapped into are throwing codes. When you clear them it runs fine, until the next start when it happens again. They WILL NOT auto clear. I backended the app to allow passive deletes and they still come up.

Is it possible that GM is running tighter parameters so that these can't be piggybacked?

Mike Levy
2021 Tanzanite Blue II M550i xDrive
2018 Silver Equinox LT 2.0T
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