![]() ![]() Backstory is I replaced timing chain guides, cam sensors, vanos solenoids, and much more in 2012, timed engine with zero codes for years. In case anyone is interested, I will update this thread with what I find on P0022, if anything. If the cams don't budge in 4 sec from the full retard position, a code P0012/22 is set.Thank you for the interesting insight, Jim. If the first two tests pass, the system bumps the intake cams advanced and watches for the change to happen in the allotted time. If more than +/- 10 degrees, code P0011/21 is set, testing ends and the vanos disabled. If the electrical test passes, then the DME checks the timing between the crank and cams. ![]() If they fail, code P0010/20 is set and the testing ends with both vanos disabled. On startup, the system tests the electrical integrity of the vanos solenoid and wiring. ![]() The cam sensors and vanos solenoids are wired directly to the DME. P0022 is kinda rare, here’s some info for ya. ![]()
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