bstains

I need a little help, I have a 2000 ls400 and my check engine light is on and the codes read bank 1 catalytic converter. I was told that the bank 1 side is the passenger side, does anyone know where i can get a quality aftermarket converter and could a oxygen sensor be tripping the code instead of the converter really being the problem.

thanks
bstains

billydpowe

iTrader: (1)

it is highly unlikely that you have a bad cat... they should last the life of the car, you probably have something out of range giving you a bad signal.. your air flow, fuel mixture, plugs and everything that feeds your exhaust is suspect. Have a good scan ran on it... you should have some Ky buddies up there that will help you.. how many miles on it??

AYEmike

you have an exhaust leak somewhere around the gaskets of the cat

timmy0tool

iTrader: (7)

i thought bank 1 was the driver's side ?

billydpowe

iTrader: (1)

this is true, bank one is the driver side... on american cars.

Kaiyin

iTrader: (1)

this. I got the same code after I scraped enough of my exhaust to create a small crack before the o2 sensor.

bstains

The check engine light is on again off again. Thanks for the information, ill have the exhaust looked at for a leak. The car has 145000 on it, runs like a champ though.