2000 Oldsmobile Silhouette "trouble code p0420" Questions

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...https://mechanicbase.com/trouble-code/p0420 Hav cat convertr temp taken..if low u need knew. If oxygen sensor heatn element bad..then u need new too..orhrwise jysta ...

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...trouble code P0420 - Catalyst System Efficiency ... If they have failed, it is likely due to something else that caused it to fail. ... the catalytic converter is broken or failed, it may be ...

Question about Oldsmobile Silhouette

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TROUBLE 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 ...

...code for the catalytic converter. It has failed the efficiency test. See this post for the full story on P0420 trouble codes ...

Trouble Code. Technical Description. Catalyst System Efficiency Below Threshold (Bank 1). What does that mean? This diagnostic trouble code ... P0420 Code Fix How Its Done Catalyst Efficiency Below ..

trouble code P 0420 and P 0304 304 cylinder 4 is misfiring 420 catalyst system efficiency below threshold what the proper fix Needs a cat and need to check the injector and coil. Coil most common on ...

Question about Oldsmobile Silhouette

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Trouble Code Here's a link to your code. Trouble Code P0420 Catalyst System Efficiency Below Threshold Bank 1 IF YOUR OIL NEEDS CHANGING, TAKE TO DEALER AND LET THEM CHANGE,THEY WILL FIND PROBLEM CODE

Question about Oldsmobile Silhouette

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...trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement TSB Number: 3316NHTSA Number: 10017210TSB Date: n/aDate Added to File: October 27, 2005 Failing ...

Question about Oldsmobile Silhouette

1 Answer

i have a po 420 code on my 04 canyon what is it P0420 OBD II Trouble Code The above link will provide a lot of inforamtin about the P0420 trouble cdde.

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