P0420
#1
bente doz
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Join Date: Feb 2009
Location: San Leandro
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P0420
Any idea on what might cause this code?
I have reset it and it comes back over again for the last week or so.
Is it the O2 Sensor or the Cat Converter?
thanks in advance. : )
I have reset it and it comes back over again for the last week or so.
Is it the O2 Sensor or the Cat Converter?
thanks in advance. : )
#7
I have the same P0420 code as well the car was running fine then all of a sudden the car started running rich and the CEL came on there is a strong smell of gas fumes when you walk around the car and coming into the cabin when at a stop light. Everyone I have talked to about it including the dealer is telling me to change the cat on it, but who makes a decent cat that will last a bit longer?
#8
Scrappy
iTrader: (1)
One of your coils probably failed. A failed cat won't cause you to run rich, but running rich (due to improper burning, due to ignition failure) will cause a cat to fail.
Replace your ignition (coils, plugs, and wires) then either do a decat or get an OEM replacement from somewhere.
Replace your ignition (coils, plugs, and wires) then either do a decat or get an OEM replacement from somewhere.
#10
I recently just got the same code when to get it check and now I'm freaking out since cats are like 1200 dollars could I use an after market one instead of a stock I hope some one can help
#13
You gonna eat that?
iTrader: (1)
My cat was dead at less than 20k because of misfires.
I replaced it with a BHR midpipe, and bought a Walker direct fit cat for less than $200 that I installed just for inspection, and took it off after.
I got a 2 year sticker, so it's not a big deal for me.
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