o2 sensor questions

[AJ-SPEC]

what's up people, I got an o2 sensor and knock sensor code for my 95 se, and I was wondering which o2 sensor it's for? the foward one going into the exhaust manifold, or the rear one? the faq doesn't specify either. anyone know?

Btw, mechanics are bull****, they said it was a hard code that they could clear and it wouldn't come back. I asked what was different about doing it that way and me going directly to the ecu and clearing it, and they said some bs about the hard codes being able to be cleared by computer. (?) I won't fall for that one again, and will have fun listening to them stutter after I grill their ***.

[quiksilvia]

there is two o2 sensors?

[AJ-SPEC]

how do you get that bastard out of the exhaust manifold? I've been trying with a crescent wrench, but I think I started to flatten a corner, so I'll wait until I get a closed end wrench. but it's still a little hard to get room. any ideas?

[DAEDALUS]

Universal O2 sensor wrench.

http://search.cartserver.com/s...7Xoss

The shorter one usually fits better.

[AJ-SPEC]

thanks! I'll try to find one local, though.

[Nismo_Freak]

I'm a mechanic, and I know that the 02 Sensor and Knock Sensor codes don't go away. You can clear them and as soon as the ECU gets the incorrect signal they come right back up.

The Knock Sensor code will not illuminate the MIL (Malfunction Indicator Light), however the 02 Sensor code will.

The 02 Sensor will have thread lock on it and as a result won't be fun to remove.

[red240ne]

The 02 Sensor will have thread lock on it and as a result won't be fun to remove.

yea, no shiit. you have to put it on a vise after you pull it off and pull the shiitty thread lock off. major *****age.

[AJ-SPEC]

thread lock? what is that?

[Nismo_Freak]

exactly that... thread lock

It's a compound that bonds the sensor's threads to the bung so it can't back out with the manifold pressure.

[Holisticbeatz]

Also, thread lock will keep it from shaking loose from vibration.

[AJ-SPEC]

damn, am I gonna have to get a new o2 bung? should I apply a thread locking compound on the new o2 sensor threads?

btw, thanks for the info guys, this is the type of stuff that is failed to mention in the faqs.

[ricebike]

scratches head... weird that my replacement bosch o2 sensor had antiseize compound on the threads...

btw, it was for a 1989 SOHC engine...

[SloS13]

If your local autostore sells PB Blaster, but it... Its like WD-40 on steroids. I wont use anything else.