answersLogoWhite

0


Best Answer

catalyst system fault

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is code PO420 on a 2000 Chevy Prizm?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What code is PO420?

Code PO420 is catalytic converter efficiency low bank 1


Why does a 2000 Toyota Camry erratic code po420 what can you do about it?

It's Catalyst system efficiency below threshold


System too lean bank 1 that is what the code read on a 2000 Chevy Prizm what can you do to fix problem?

pull the intake and fix the secondary runners


What does code PO420 mean for chevy S10 4 cylinder?

Catalyst efficiency below threshold. (The catalytic converter may be failing.)


Turn off check engine light on 2000 Chevy Prizm?

I clear the check engine light with a Scangauge II. But most ODB-II devices can read and clear the code.


What does check engine code P0420 on Chevy Prizm?

Trouble code P0420 means:Catalyst system efficiency below threshold


What cause a P420 code on a 2000 Monte SS?

PO420 is catalystis efficency low bank 1. That is referring to the catalytic convertor bank 1.


Whats does it mean when your obd ii scanner reads po420 and how do you fix the problem on a 2000 Mitsubishi Galant?

You need to obtain a troubleshooting chart for that code. If I recall, it has to do with the Evaporative system.


How do you fix code po420 for Chevy s10 blazer?

P0420 = Catalyst Efficiency Below Threshold (Bank1). Sounds like you probably need to replace the Bank 1 (drivers side) Catalytic converter.


A 2000 Chevy Astro code po339?

Ckp sencer


What can cause a P420 code on a 2000 Monte Carlo SS?

Code PO420 is catalyst effeciency low bank 1 sensor 1 which is referring to the oxygen sensors. Have a repair shop do the diagnostics on the system. Jumping to conclusions can become very expensive.


1999 Cadillac eldorado with code po420?

Trouble code P0420 means:Catalyst system efficiency below threshold (bank 1)