Diagnostic Code P20866-002 - Left Cyl. Bank Enleanment at limit.
Does anyone know what this Diagnostic Code mean? How do you fix it?

Thanks

 

where did you get that fault code? it's 5 digits and it usually must start with P0****

anyway, your engine is running lean. it can be an air leak, fuel injection too low or fuel pressure/regulator too low.

your mileage? wear out on engine can cause this too.

was the check engine light "on"?

 

There's no such word as "enleanment." I suppose MB can make up any word they want, but would they?

So, there's an invalid fault code and a made up word. This guys driving a Yugo or he's playing with your head.

 

Post your vehicle's year, model and the problem, then we may be able to help you.

And where did you come up with that code ?

 

It could be the desmodronic hydroacutator .










I can make up stuff too

Just kidding, Recheck your code and get back to us.