This error code indicates a problem with the catalytic. Help on my 2004 bmw 330ci P0420 is one of the most common error codes
BMW 335 HPFP Failure? - YouTube
This guide applies to most vehicles and explains what the code means.
P0420 on bmw means your catalytic converter isn't processing exhaust gases efficiently
A p0420 code means your car’s catalytic converter isn’t working efficiently, triggering the check engine. I tried this with a 2010 x5 and got the p141 heater circuit code Some people commented that some ecus uses the signal line to. Discover common causes, diagnostic tips, & solutions to.
Once diagnosis points clearly to the hpfp, the fix is usually straightforward Replace the pump with the latest revision. Is your bmw’s check engine light on, with the scanner showing the dreaded p0420 or p0430 catalytic. For anybody who owns a 2011 335i / n55 engine and has experienced a hpfp failure as i.
I have an ob2 reading of p0420 on my 1998 740il
In fact, you can see what the codes are thru a series of prompts on the turn signal stalk, as far how to do this. Autozone read the codes (that included a p0420) as a misfire in a cylinder number i cannot recall as a i type this Quick fix using resistor and capacitor to retard the downstream o2 sensors The p0420 code signals a low catalyst system efficiency
This code suggests that the oxygen levels are below the. Hello all, i just got a p0420 catalyst system efficiency below threshold (bank 1) cel on my 2013 335i xdrive
