Symptoms of P0431 OBD II Trouble Code
- The catalytic converter is no longer functioning properly
- An oxygen sensor is not reading (functioning) properly
- There is an exhaust leak
Common Causes of P0431 OBD II Trouble Code
- Mitsubishi P0431I was unsure where to go to start a new thread.My babe is experiencing O2 sensor problems and I was wondering where I could go to get a diagram of the 2 banks (P0431).Im thinking the bank2 is on the drivers side and how do I know if its the upper or lower sensor?...
- p0431 code VW 4motion passatreceived po431 code on my 4 motion passat 6cyl, and observed leak in exhaust system - middle box - just after both cat towards the back of the car , should this be of concern since it is after the cat. Car is driving excellent. Can i repair the cat?...
- 2004 Kia Sedona, p0431, p0122Replaced tp sensor last August after registering a p0122. Weather got colder (frequently below zero), van seemed to be sluggish on acceleration, thought it was the cold weather and icy roads. Last weekend had to slam on brakes to avoid slow moving vehicle that a passing semi revealed last minute (th...
- 2005 Mitsubishi Endeavor LS P0431, P0174, P0421, P0171, P0304, P0431I have a 2005 Mitsubishi endeavor with the following codes: P0431, P0174, P0421, P0171, P0304, and P0431 and I haven't the faintest idea what any of them mean. I have searched the internet with no luck and would appreciate any help that anyone can give....
- code p0431 p0421 vw passetpo0431 vs passer...
- 03 Audi A6 Quattro Avant P0431Just purchased a 2003 Audi A6 Avant.
When I first picked it up it had two orange warning lights on the dash. One was "ABS" and the other was a triangle with an apostrophe inside of it.
Second day I had it, the check engine light (same color) came on. I went down to the local parts store and b...
- 02 Mazada Millenia 2.5L P0300, P0421, P0431I have an 02 Mazada Millenia 2.5L with 170000 miles that has a P0300, P0421 and P0431 code. Engine appears to be just slightly weaker than normal and fuel mileage has dropped off a tiny bit. It also appears to have a slight miss that I hear more than feel. Any ideas what the problem could be?? P03...
- Mitsubishi Montero 2001 OBDII Code P0431Changed all 4 O2 sensors (generic Bosh), still get the same P0431 after resetting codes and 2 days of driving, engine light comes back on, also I get the code twice, code 1 is P0431 and code 2 is P0431, what else can I do??????
exhaust does not smell like rotten eggs and I dont think there is an ex...
- 2006 Mazda6 P0431 warm up catalyst below threshold.P0431 warm up catalyst below threshold.
What should I do? Check engine light also came on. And it doesn't drive property. Need help thanks....
- P0431 Code for 2001 VW PassatI purchased a 2001 VW Passat GLS Sedan, V6 Automatic on 8/10/10.
My check engine light came on yesterday. Took it to the dealership where I bought it and the code came up as P0431.
It is my understanding that it could be an O2 sensor, an exhaust leak or the catalytic converter.
I don't know much...