Hello Everyone.
I have a 1998 Lexus ES300 with 75,000 miles on it. 8 months ago my check engine light came on and I took the car in. The mechanic plugged in his computer, deduced that an O2 sensor had failed and proceeded to replace the sensor. Of course the sensor that failed was on the back of the engine and he charged me 400.00 to replace the sensor. All of which was labor. He told me he couldn't get a wrench in there. He was refered to me by friends so I trusted him.
After 15,000 miles and just 6 months the check engine light came on again. Is there some other component that might be causing my sensors to fail? Is this a common problem? What do I do?
Walter Martin