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Code PO420 is catalytic converter efficiency low bank 1
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What is code PO420 on a 2000 Chevy Prizm?
catalyst system fault
1999 Cadillac eldorado with code po420?
Trouble code P0420 means:Catalyst system efficiency below threshold (bank 1)
How do you fix po420 on impala 3.4?
Po420 2001chevy lmpala
What mean Po420 Dode caravan?
Do didn't say which engine you have. The trouble code PO420 is telling you there is a catalystic converter not doing it's job. We need to know which engine and what year you have in order to determine which cat is at fault.
Why does a 2000 Toyota Camry erratic code po420 what can you do about it?
It's Catalyst system efficiency below threshold
What does code PO420 mean for chevy S10 4 cylinder?
Catalyst efficiency below threshold. (The catalytic converter may be failing.)
What is a PO420 in a 2002 Mercury Cougar?
What is a PO420 in a 2002 mercury cougar: Now if your car is 2.0L DOHC. OBD ll PO420 : Catalyst Efficiency Below Threshold (BANK 1). Hope this helps...
What does code PO420 mean and what you need to do service engine soon light on a 2003 Nissan Xterra?
Trouble code P0420 means:Catalyst system efficiency below threshold (bank 1)
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.
Replace converter on 2002 grandam but keep getting po420 code?
You assumed that Code PO420 Catalysis System Efficiency Below Threshold (Bank 1) meant the converter was bad? Not necessarily so. It can be an exhaust leak, defective O2 sensor on bank 1, engine coolant sensor is defective, leaking fuel injector, cylinder misfire, or problem with wiring on O2 sensor.
Code PO340 and code PO420 99 ford escort zx2 car is firing but wont start?
Trouble code P0340 means:Camshaft position sensor "A"-circuit malfunction (Bank 1) Trouble code P0420 means:Catalyst system efficiency below threshold (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.
