on my way home from the beach my check light came on so I pulled into an autozone and heres what they got.
Troubleshooting code : P0420
The PCM has determined that the catalyst system efficiency for bank 1 is below threshold for the current engine operating conditions. (Bank1 identifies the location of cylinder#1, while bank2 identifies the cylinders on the opposite bank)
Definition
Catalyst efficiency low-bank 1
Explanation
The oxygen sensor monitor the catalytic converters ability to store oxygen
Problem Causes
1-Catalytic Converter defective (failure possibility due to #2, 3, or 4)
2-Engine misfire or running condition
3-Large vacuum leak
4-Engine oil leakage into exhaust-vaule guide seals, piston rings
Ok so thats what the print out said. Now its a 3.4 and I'm getting around 300 miles to the tank It didn't seem to have any loss of power when the light came on and sounds to be running smooth as it ever has. As far as a vacuum leak I got some sensor safe carb cleaner and sprayed it around the intake to see if it would rev (that is the correct way to do it right)
![Confused :confused:](https://board.marlincrawler.com/Smileys/marlin/confused.gif)
and it didn't. The dealer replaced the converter about 2,000 miles ago. and as far as leaking oil.. I don't seem to be blowing smoke
![Smoke :smoke:](https://board.marlincrawler.com/Smileys/marlin/smoke.gif)
that I can tell of. But I am gonna have my wife rev it up so I can check then too..
Any and all help is always appreciated!
thanks!
![Big Thumb Up :biggthumpup:](https://board.marlincrawler.com/Smileys/marlin/biggthumpup.gif)