Ok, so we only had 2 codes surprisingly. 1st one:
P0420
Definition: Catalyst efficiency low on bank 1
Explanation: The O2 sensors monitor the catalytic converter's ability to store oxygen.
Probable cause: 1) Catalytic converter defective (failure possibly due to items
#2 ,3,4)
2) Engine misfire or running condition
3) Large vacuum leak
4) Engine oil leakage into exhaust - valve guid, seals, piston rings
Code #2:
P0401
Definition: EGR system fault
Explanation: The ECM has detected too little flow on the EGR system
Probable cause: 1) Blocked passage on EGR system
2) Failed EGR valve
3) EGR solenoid faulty
4) Failed EGR pressure sensor where applicable
5) Failed EGR position sensor where applicable
So, this combination painting a story for anyone? I'm sure the Catalytic converter is probably original. I would call 255k on it a good run if it is. Just hate the prices of those stupid things. Well I hate the price of ANY repair, all I see is mod money going away, but anyway............I'm gonna go put them plugs in and then I'll research these tonight. Anybody got any sites I should check out in relation to the codes? Since I've been coming onto this site for about the last year, I've discovered more cool sites through here than anywhere else, and wouldn't surprise me if there is a site where you can plug in your vehicle info, codes recieved, and it gives you a nice troubleshooting tree or something. Or maybe I'm just hoping there's one, LOL. I love doing upgrades/mods but hate doing repairs and maintenance.