Hello to everyone! This is my first time on this forum so I hope there's great people on here! I have a 2000 chevy blazer ls 4.3 with 140k service engine light came on the other day and the codes were for egr and ho2s insufficient results bank 3 sensor 1. My question is it OK to pull that o2 sensor and try to clean it to see if it helps? If so what do I use to clean it with? Thanks in advance!

 

Welcome to the forum.

The new member area is just for introductions, so I moved this to Engine and Transmission so more people will see it.

 

Never knew anyone who has done it, although i did read you can do it by soaking in seafoam. Really though, if you have it off you may as well just put a new one in, fairly cheap and you`ll be doing it soon anyway

 

well thank you!

 

I would just replace it but I'm moving to Nevada in three days and need all the money I can get. Just looking for a possible quick temporary solution.

 

The B1S3 oxygen sensor is downstream, after the converter. It has absolutely no affect on engine performance. It is there strictly to monitor the catalytic converter.

 

Thank you captain. I won't worry about it then!