i have a 98 ex coupe and im trying to take the heat sheild off... how does the o2 sensor come out of the header?

 

17mm I believe. Lube it first, it will be tough to lossen. You might want to Lube the o2 sensor was well...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by w00t! &raquo;</TD></TR><TR><TD CLASS="quote">17mm I believe. Lube it first, it will be tough to lossen. You might want to Lube the o2 sensor was well... </TD></TR></TABLE> yeah, since its a "virgen" bolt itll give u a hard time....but dont give up my friend

 

mine was a 20 or 21... and normal wrenches/sockets don't really fit... you should use an "o2wrech" they're designed thinner on the end that's closest to the manifold... for clearance.

 

do it the easy way and leave it attached at the header, but unplug it from its "socket" by the block.

Kinda hard to explain, dont take out the sensor, but unplug it on the other end, and push the wire through the hole.

Thats how I did mine, took 5 minutes.

 

I use the 22mm last week on my GSR

 

go to your local auto store.. find an O2 sensor socket. it has a cut/opening to clear your wire coming out of the sensor. slap it on a rachet, get a bar on there for more torque and muscle it off.

 

mine came off with no problem at all and it was rusted in there 4 years strong lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jun &raquo;</TD></TR><TR><TD CLASS="quote">I use the 22mm last week on my GSR</TD></TR></TABLE>

Yeah, It's either 17mm or 22mm...