realestvin7
08-09-2010, 05:24 PM
Hi guys. I have a 95 OBDI S14. My CEL keeps coming on even after replacing the upstream O2 sensor on the exhaust manifold. I've gone through 2 sensors now. A buddy of mine said that multiple things can set off this code. He told me he read somewhere that another guy had a similar problem with his 240SX, and it was traced to a bad MAF ground. I was curious if anyone has heard of this. What directions can you guys steer me in? I'm a tech savvy do-it-yourself-er, so I'm confident I can figure this out with help.
I'm using genuine replacement Bosch O2's btw, so it's not a sensor malfunction.
Car details:
259,000 original miles
CAI
Cat-back
Other than above noted mods, it's stock.
Thanks.
I'm using genuine replacement Bosch O2's btw, so it's not a sensor malfunction.
Car details:
259,000 original miles
CAI
Cat-back
Other than above noted mods, it's stock.
Thanks.