Hi,
I recently purchased a 2003 rx 300 awd. a few days ago my VSC light & check engine light when on. I first check the gas cap as I heard that could be the problem. But lights are still on. I had it checked by a mechanic and it come up with a code 135. He said it was a bad oxygen sensor, bank 1, sensor 1. They want $203. at autozone for this sensor (bosch). I looked on line and they sell a DENSO one (not a direct fit) for 1/2 the price. Has anyone ever used this brand before? any problems? Has anyone have this problem before. Would this sensor cause both of those lights to go on? Car only has 47,000 miles on it. I also heard this would be covered under emissions warrany but lexus said no. Any help would be appreciated.