Why do I get a po420 code on my engine?
Someone said if you get a PO420 code pertains to one of the sensors before the converter. If the sensor after the converter reads the same as the front sensors, then it throws up a different code. I wouldn’t think a bad converter would cause an engine to run rich. It was my assumption this sensor just checked the performance of the converter.
What does P0420 mean on a check engine light?
Welcome to P0420.com, the place dedicated to that DTC (diagnostic trouble code) P0420. The P0420 code is a very popular one and that’s why there’s a site dedicated to that specific trouble code. If your car’s check engine light is on, get that code read in case it’s a P0420. A P0420 code is a trouble code on OBD-II equipped vehicles.
How to fix the P0420 code on YouTube?
P0420 Code. How to fix it. Don’t spent spend tons of $$$. – YouTube P0420 Code. How to fix it. Don’t spent spend tons of $$$.
When to replace a P0420 code-catalyst system?
Check that the waveform is pretty steady. If the reading fluctuates then the sensor is likely bad and will need to be replaced. A few additional DIY friendly tips include: If you have a heat temperature infrared “gun”, check the exhaust temperature before the cat and right after.
Welcome to P0420.com, the place dedicated to that DTC (diagnostic trouble code) P0420. The P0420 code is a very popular one and that’s why there’s a site dedicated to that specific trouble code. If your car’s check engine light is on, get that code read in case it’s a P0420. A P0420 code is a trouble code on OBD-II equipped vehicles.
What causes the O2 sensor to show the code po420?
Rich or lean mixtures can damage the catalytic converter, and when the catalytic converter is damaged/filled with fuel, the efficiency will be low, and the rear O2 sensor will see that and show the trigger the code Po420.
What does the misfire code P0300 mean?
Codes like P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, and P0308 are misfire codes, and these codes require misfire diagnosis. If the catalytic converter is replaced without repairing the misfire, the new catalytic converter will go bad again.
Can a damaged catalytic converter trigger the code po420?
Yes, they can, but not in the way you think. Rich or lean mixtures can damage the catalytic converter, and when the catalytic converter is damaged/filled with fuel, the efficiency will be low, and the rear O2 sensor will see that and show the trigger the code Po420.