I've posted about the codes previously, however my lexus dealership diagnosed things today and told me the air fuel mixture sensor is bad and needs replacing. They also quoted me $500 to do it. I'm wondering how difficult this is and where exactly the sensor is. I'm trying to determine if this is something I should tackle on my own or find a smaller shop to repair. Below are the codes, so it appears it's Bank 1 Sensor 1. Any help would be appreciated!

Jim

DTC P2195 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) along with
DTC P0303 Cylinder 3 Misfire Detected

 

I have the same code P2197.
MY car's at the dealership now and it's $514 total ($274 for the sensor)

 

Any shop with a lift should be able to do this pretty easily-

http://is.sewellparts.com/oem-catalo...S250-2007.html

part 89467B

(that's for a RWD 250 anyway, but they'll have em for other models too)

be sure to make an account with your clublexus username to see a lower price- only $175 for the part that way

 

The part is auctually $175.50 (not including shipping) at Sewell w/ CL pricing. But I auctually have one that came off my 2006 IS 350. Im selling it for $150 if your interested. See my classified post: https://www.clublexus.com/forums/is2...afr-front.html