thedru13

iTrader: (24)

I can't break my rear 02 sensor loose. I feel like I am going to break it. I have soaked it in PB blaster and nothing. I have tried an O2 socket on a breaker bar and an open ended wrench can't get it to budge. Looking for any help. Trying to install an extender so i can clear my CEL

turbotalawd

iTrader: (11)

Is this on the stock exhaust/cat? In some cars the o2 was stripped on installation. If its an aftermarket exhaust/test pipe, its possible that it was stripped when installed. If not, just get some leverage with a breaker bar and soak it in pb blaster. Try to drive hard to heat up the pipe then try to break it loose.

thedru13

iTrader: (24)

Aftermarket exhaust. Works. So its past the test pipe. I will try and heat it up that was going to be my next step. Hope its not stripped..

turbotalawd

iTrader: (11)

Heat and pb blaster should do the trick. Spray it down really good the day before, then drive it hard and break it loose.

thedru13

iTrader: (24)

Ok will try it again. Hope it works!!!!

thedru13

iTrader: (24)

As suggested heated it up and soaked it again. Bent it a bit but got it to break free. Man the threads were trashed.. Ran a tap over it to clean the threads up.. Got it to bolt back in.. so far so good

turbotalawd

iTrader: (11)

Good deal. Put some anti-seize on there for future reference.

awdordie

iTrader: (1)

+1 on the antiseize, and i hope for your sake the 02 trick works. i used the two spark plug antifouler trick and my cel came back the same day

03evo8racer

iTrader: (21)

Last time i took the sensor out I let the car run a few min to get the exhaust pipe hot and it unscrewed easily. Just be careful so you don't get burnt.

thedru13

iTrader: (24)

Yah put the anti seize on there. I really want to do the tephra mod.. Gotta do some tuning... So hopefully the CEL stays off for a bit..

Pal215

iTrader: (12)

I would retap the threads if you ever take your o2 sensor out again, btw they sell o2 sensor spacers so you don't have to do to 2 spark plug anti fouler thing anymore.

thedru13

iTrader: (24)

I did retap the threads and installed a spacer... Hopefully that solves my CEL