Questions & Answers for: engine code p0420

code and it seems to be the cat needs replacing. My daughter-in-law has a 2000 Nissan Maxima. It was pushing codes P0420 & P0430 and P0440 at times. It was also running a wee bit rough, especially

...engine D16Y8) has P0420 OBD II code along with misfire on cyl 3 and 4. I changed out the plugs and the distributer cap. Can't get the rotor off yet. Engine running like almost new now despite 178k ...

engine light on. Diagnostics - P0325, P0420, 2000 Subaru Outback 2.5 CODE PO420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK I * CODE PO325 KNOCK SENSOR NO.1 CIRCUIT MALFUNCTION BANK NO.1 OR SINGLE

engine light stays on, code is p0420 low thresh bank 1.... where is bank 1 located I'm not sure you understand the difinition of OBD2 fault code P0420, it means that Catalytic converter in the ...

...code p0420. Engine seems to be running smoothly. http://www.obd-codes.com/p0420 TSB Number: 3316NHTSA Number: 10017210TSB Date: n/aDate Added to File: October 27, 2005 Failing Component:Electrical ...

...CODE P0420 CHECK ENGINE CAME AND I HAD IT CHECKED AT AUTO ZONE THE CODE INDICATED WAS P0420. VEHICLE ISN'T MISFIRING OR RUNNING BAD. P0420 isnt a misfiring code; this code P0420 is refer at ...

...engine light codes,P0420 and P1519. P0420 Catalyst System Efficiency Below Threshold (Bank 1) P1519 is what's causing the P0420. If the Variable Induction Control Actuator is stuck closed, it would ...

...Engine code P0420 Catalyst efficiency below ... mechanics.stackexchange.com/.../check-engine-code-p0420-catalyst-efficie... Feedback P0420 Error Code: Catalyst System Efficiency Below ... ...

...the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. Read more at: https://www.obd-codes.com/p0420 Copyright OBD-Codes.com ...

Engine light came on my 2011 Subaru Legacy premium. I connected the computer and got three codes. P020 PRM, P0420 PND, and P0420 CNF. Can you please let me know what they are? P0420 Catalyst System ...