...code is 420,what dose this mean? i have tried clearing the codes many times and it keeps coming back on.the front end also shutters between 45 and 55 mph P0420 Catalyst System Efficiency Below ...
code p0420 popped up car still running fine . 420 seems to indicate catalytic converter problem. Wouldn't i be loosing power? Exhaust pipe blackened but may be due to original probs with cyl misfires.
...code 420 is Catalyst system efficiency below threshold, ( bank 1 ) Fault code 430 is the same as above but, ( bank 2 ) Fault codes do not determine what part is bad, they just reduce the field for ...
Question about Cars & Trucks
...code 420/430 but the mechanic diagnostics do show show a bead catalytic convertor nor oxygen sensors. What else can it be? Getting Check engine code 420 and 430 catalytic convertor low efficiency. ...
...420 sensor how can I fix it this obd2 trouble code table can help you understand the meaning of code, for po420, you can try: Check for exhaust leaks at the manifold, pipes, catalytic converter. ...
...code of 420 Code 420 is a catalytic converter is not working properly.Check the converter for leaks and the rear oxygen sensor for leaks.If they are good then you should replace the converter and ...
...code... the p0172 and 420 can be related because that oxygen sensor is the one installed in ur cat converter.....u most likely will need to replace both the cat converter and oxygen ...
Question about Cars & Trucks
420 as trouble codes on my 2008 town and country van. How do I know if the oxygen sensors or catalytic converter needs to be replaced? I've already replaced all the sparkplugs and cleaned the mass air
...code is po 420 "catalyst system efficiency is below threshhold". i took it to my local mechanic and he changed the electric coil wiring. but code came back. I took my car to chevorelet ...
...code 420 how do i fix this? DTC P0420 Catalyst System Low Efficiency Bank 1 You will find a bad O2 Sensor behind the converter or a bad catalytic converter on the bank 1 side of the exhaust manifold. ...
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