My check engine light came on. I had the code scanned and it said bank 2 oxygen sensor. I replaced both down stream o2 sensors and reset the light.
50 or so miles later the light came back on. help
check engine light
Sep 08, 2003
6 Replies
50 or so miles later the light came back on. help
what does bank 2 mean.
passenger side exhaust.
ENGINE B1S1 B2S1 | | | | CatConv CatConv | | | | B1S2 B2S2 | |
Yeah, the code was likely B2S1 and he replaced B1S2 and B2S2!
Doc
You are correct. Just replaced b2s1 and I am going for a ride.I may also replace the last o2 sensor and have all four new. thoughts 120 k miles
97 350 thanks for the help
Here's my thoughts. Quit throwing expensive parts at it! Get the EXACT code that was set to find out what the problem really was/is. It could be the sensor's heater, could be lean, could be rich, etc. The problem may not even be the 02 sensor itself, but it's finding a problem with the fuel delivery system somewhere.
Doc
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required