02-08-2008, 12:05 PM
if the sensor is before the cat, i'd replace it. its a good excuse to upgrade to that header if you're interested. on my old miata, i had to relocate an O2 sensor after the main cat because of it was the stupid california emissions model. i bought a nut of proper thread size for like 79 cents or something, took it to a muffler shop and paid a guy $20 to weld it on. took a total of 30 min.
not sure if your exhaust mani is cast iron or not, but maybe the threads on the old sensor are stripped and not the bung its in? maybe taking it out and running a thread chaser through it might clean it up a bit.
not sure if your exhaust mani is cast iron or not, but maybe the threads on the old sensor are stripped and not the bung its in? maybe taking it out and running a thread chaser through it might clean it up a bit.
1994 Ford Ranger
2004 Honda S2000
2007 BMW X3
2004 Honda S2000
2007 BMW X3