Ok, getting ready to install a buncha parts on my es. Going on are:
RPW Jet-Hot Coated headers
RPW DownPipe
Magnaflow HFC
Greddy resonater
Greddy Muffler

I already have short ram intake

Also:
EGT Sensor
WideBand O2
(Prolly a oil or trannsmision fluid temp guage as well)
and SAFCII

I know I have to drill a hole in the headers (4th cyl.) for the egt sensor. What holds it in place?

My HFC has two O2 bungs. So my question is, where to put a)the first factory o2 b) do I need the second factory o2 sensor, and where does it go? and c) where do I plug in the Wideband?

Thanks, hope that question made sense.

 

You can either weld on the EGT sensor or buy one that comes with a clamp that you can tighten with a screw driver and then take off whenever.
If you do have two o2 bungs in your HFC, install your wideband o2 sensor first (closer to the head), and then your stock o2 sensor second. You don't necessary need the second o2 sensor (stock) but without you will have a CEL.

 

Never mind .... thought it was an Evo post

:-)

 

^ even if I use RRM's CEL eliminator on the 1st factory o2? (the one going furthest from head in HFC?)


I can live with a false CEL - No problems here in Florida, except that I'd miss any other reasons for the cel.
and P.S. where can I get that clamp you were talking about for the egt sensor (seeing as how it's used.... I don't want to weld it in)

 

You have to install your wideband before the cat that's why it goes first. If you will install it after the cat then all you do is check if your cat is doing the right job or not. And I'm really not sure if you should or shouldn't install RRM's cel eliminator after the cat. A picture of where exactly your 2 o2 bungs are would help.

This is the clamp I was talking about. It comes with the EGT probe.

 

a wideband o2 CAN go after the cat. the difference is only .1-.2 AFR. a cat's operation is mostly under cruise when the AFR's are bouncing back and forth. under WOT, the cat will hit the capacity of how much hydrocarbons it can soak up and then just let the rest through. dyno widebands are usually stuck on the tail pipe of a car and are used to tune regardless of whether or not there are cats on the car.

 

Wow, where do you get all this info. Impressive, thx.

 

dunno, i been around

 

^Been around huh?

 

like a *****, heh heh.
You're the man!

 

ok... hang on let me find a diagram.....


n/m. It's a universal HFC from magnaflow. One o2 bung on each side. There's no o2 bung on the headers or downpipe. So I have two o2 bungs for 3 o2 sensors. I'll take someone's advice, run wideband through first and first factory sensor through second I guess

 

Yeah, considering what rhyzin said, you could run your wideband sensor 2nd and as a first one you could run your stock sensor with rrm's cel eliminator. That way you won't have a cel and you could still get a reading from your wideband.