Questions & Answers for: p0421 mitsubishi

how to fix daignostic codes p0304, p0421 and p0455 efficiently without costing an arm and a leg. P0304 is Misfire in cyl# 4. Check your ignition system and fuel system. P0421 is Catilist effeciency. ...

error code p0421 taken from: http://forums.evolutionm.net/lancer-troubleshooting/349095-code-p0421-call-mitsu-before-you-do-anything.html Code P0421- Call Mitsu before you do anything! Icalled my ...

NEED TO KNOW WHAT IS THI P0421 ERROR CODE ERROR CODE P0421 PO421:Warm Up Catalyst-below threshold (bank #1) CEL

please interpret code p0421 P0421 : Warm Up Catalyst Efficiency Below Threshold

P0421 I have a 2003 mitsubishi Shogun Pinin which keeps producing the fault code P0421 every 150 km the 2 o2 sensors are ok yes this is your catalytic convertor is clogged you have to change before is

2 trouble code p0421 and p0421 pd OBDII scanned describing something like warm up catalyst threshold bank....Please help I believe this has to do with your catalytic converter. Sounds like it might be

...mitsubishi lancer will not pass smog code P0421 comes up what is this. code P0421 may mean that one or more of the following has happened: The catalytic converter is no longer functioning properly An ...

2003 lancer what is code p0421 code P0421 may mean that one or more of the following has happened: The catalytic converter is no longer functioning properly An oxygen sensor is not reading ...

1999 mitsubishi galant es engine light code P0421 http://www.obd-codes.com/p0421

Is it possible to get a P0421 code from the OBD computer when the engine light is not on? Yes it is and it would mean that the problem that caused the P0421 has either been corrected or is ...