Need help on which O2 Senors to purchase please

[Bruce Wayne]

Originally Posted by KRAM36

That's not a problem. I have the proper tool to remove them and have removed one just to look at it.

May cats are bad and so are my O2 Senors. I'm putting headers with 200 cell cats on the car. I'm going to put new O2 Senors on them. So the removal of the old O2 Senors isn't an issue.

That's good.. obviously the weather in Kasas City isn't as destrimental as the UK. i had to replace the O2 sensors on the range rover last saturday. a couple of hours of heat, pb blaster, turn a bit with a breaker bar on the O2 socket, wiggle back and forth rinse and repeat.. finally got one out.. i left the other one till this weekend.

i thought the O2 sensors were going out on the boxster and was really not looking forward to that joy... 4 heat and corrosion 'welded' in live data seems to show its the MAF. i'm more pleased on that funnily enough !


That's one of the many things i miss about my time in the US (SoCal) cars dont corrode up to the eyeballs and you guys have garages that can actually fit a car in !

[KRAM36]

Originally Posted by Bruce Wayne

That's good.. obviously the weather in Kasas City isn't as destrimental as the UK. i had to replace the O2 sensors on the range rover last saturday. a couple of hours of heat, pb blaster, turn a bit with a breaker bar on the O2 socket, wiggle back and forth rinse and repeat.. finally got one out.. i left the other one till this weekend.

i thought the O2 sensors were going out on the boxster and was really not looking forward to that joy... 4 heat and corrosion 'welded' in live data seems to show its the MAF. i'm more pleased on that funnily enough !


That's one of the many things i miss about my time in the US (SoCal) cars dont corrode up to the eyeballs and you guys have garages that can actually fit a car in !

The one O2 Sensor I took out came out without any problems. I did check my MAF sensor with the Durametric, it's functioning fine.

Here is where what I think caused my cat problems. My AOS was going out, not doing the heavy smoke deal or anything like that, but when I put in the new intake system there was oil in the Distribution T and the line from the AOS. Why this AOS didn't just give up and blow like most I don't know, but it went on long enough that my car threw a CEL for the cats. So I'm pretty sure they are mucked up and bad.

The P0446 happen because I tried a home made repair to the gas cap seal. Not sure what I did wrong because when I would go to put fuel in the car, it would take several cranks to get the engine started again. Replaced the "repaired" gas cap with a new one, code is gone and the car starts right up now after being fueled.