Oxy sensor question Options

[fatherof4]

got my exhaust installed today. I have a check engine light on. My 2nd 02 sensor is not installed yet. The one on the car has a bracket with two holes and the cat I have has a threaded hole for the sensor. Do they make one for the car that has threads? I found one at the parts store but it only has one wire. 95 st. 7afe

[Bitter]

OH, I got it backwards. I don't think they make an adapter to go from flange style to threaded. You'll need to get a threaded sensor (you can splice in a universal) and then use a spacer to set it back from the exhaust stream so it doesn't throw a code for the missing cat. I remember from your build thread that you have an ebay header which deletes the warmup catalyst. You must have a California emissions Celica? Does the stock exhaust manifold have a catalytic converter on it?

http://www.ebay.com/itm/HHO-Small-O2-Space...2e0&vxp=mtr Something like that, you may need to play with the length of the spacer to get it to not throw a code for the missing cat. Some spark plug non foulers are the right thread, you just drill the end out larger, smaller or larger hole can act like a longer or shorter spacer.