System Too Rich Off Idle Bank 2

The engine is running too rich (too much fuel, not enough air) when idling on the side of the engine without cylinder #1, which can cause poor fuel economy and rough idle. This is typically caused by a faulty fuel injector, fuel pressure regulator, or oxygen sensor on that bank. The driver may notice decreased fuel efficiency and poor engine performance at idle.

No detailed repair guide linked yet. Check back soon or search for related issues.