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Definition: Catalyst efficiency low- bank 1 Explaination: The oxygen sensors monitor the catalytic converters ability to store oxygen. Probable causes: 1. Catalytic converter defective (failure possibly due to #2, 3 or 4) 2. Engine misfire or poor running condition 3. Large vacuum leak 4. Engine oil leakage into exhaust- valve guide seals, piston rings
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99 Chevy lumina check engine code is p0420 what does it mean?
Low catalytic converter efficiency.
What does code P0420 mean for a Chevy s10 v6?
Bank 1 catalyst efficiency failure. The catalytic converter has failed.
What does code p0420 on Nissan Maxima mean?
Trouble code P0420 means:Catalyst system efficiency below threshold
What is code reader code P0420 mean?
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What does a P0420 code mean on a 2001 Toyota sienna?
Trouble code P0420 means:Catalyst system efficiency below threshold
My F0rd F150 truck failed inspection with this code P0420. What does this code-P0420 mean?
Catalytic converter efficiency failure.
What does the code p0420 mean on a 2002 infinity Q45?
Trouble code P0420 means:Catalyst system efficiency below threshold
What does the obdii code p0420 for a 1995 jaguar xjs mean?
trouble code P0420 means: Catalyst Efficiency Low - A Bank
What does check engine light error code p0420 mean?
Trouble code P0420 means:Catalyst system efficiency below threshold
What does code p0420 mean on a 2005 Chrysler town and country?
Trouble code P0420 means:Catalyst system efficiency below threshold
What mean P0420?
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
What does P0420 on a 2001 F150 mean?
Trouble code P0420 means:Catalyst system efficiency below threshold
