How do i hook up the O2s without cats

**Lunatikgixxer** · 04-05-2010, 01:59 PM

How do i hook up the o2 sensors with an off road y pipe installed? I dont understand exactly how to hook them up, can someone help? Pics would be great if anyone has some.

**V8MUSCLE** · 04-05-2010, 03:20 PM

for the front ones you will either need extensions($35 each) or new bosch 13111 (2000 corvette rear sensors(75-90 each))

you dont need the rear ones, except to plug the hole, my some people use a bolt type plug to plug it, i just shoved the original ones back in. my back ones fit with the original plug/wires but if yours doesnt just ziptie them up out of the way.

you will throw a code saying cat malfunction or somethin like that.

**Hi-Po** · 04-05-2010, 03:24 PM

Some have problems with the Bosch's, some do not. Its really a toss up what is going to work it seems.

Many people swear by the Denso's - Part Number - Denso 234-4087

**67CamaroRSSS** · 04-05-2010, 03:38 PM

Originally Posted by Hi-Po

Some have problems with the Bosch's, some do not. Its really a toss up what is going to work it seems.

Many people swear by the Denso's - Part Number - Denso 234-4087

That's what I have for the front O2's. They're the only ones that don't give a problem code (switching too slow is the code - doesn't effect drivability).

**Lunatikgixxer** · 04-05-2010, 04:01 PM

i have the extensions.

**Hi-Po** · 04-05-2010, 04:27 PM

Originally Posted by Lunatikgixxer

i have the extensions.

Those are known to cause some problems as well, rain/carwash can get to them. Personally, I wouldn't mess with the extension's and use one of them two o2 sensors posted here for you.