I got my Evo a few months ago and I'm still getting to know all of her little nuances. The more investigating I do the more I realize that the guy I bought the car from probably didn't know as much about the car as I thought he did.

Anyway, on to my latest dilemma. I want to install a Wideband on the car and when I started crawling underneath the car to see if I had a bung somewhere to install the sensor the pictures below are what I found. There is a bung in the pipe right after the test pipe but it looks it's sitting at about a 4 o'clock position and everything that I've read says not to install it below 3 o'clock. My question is do you think this spot will be OK for a Wideband sensor or will the sensor still get ruined. If this won't work what options do I have to get a bung in the right position so that I can install a Wideband? Will I need to get another pipe, or just have another bung welded into this one at the correct location? Which option would be cheaper and easier?

Any help would be appreciated but keep the criticism to yourself. I did spend some time searching for an answer before I posted this and I know the wires look like garbage which is part of the reason why i'm trying to fix it.

Thanks for your help!

 

no pics, and honestly i dont think it will have a problem, the reason no installs below 3o-clock is because moisture can condense onto the sensor and cause problems, if you run the wideband power to 12v ignition, then you can just turn the key till you see the gauge on, the sensor will begin to heat up after a minute or so id start the car and let it fully warm up, but i do that everytime anyway. but if you take those simple precautions i dont think it will give you too much trouble

 

You couldn't see the pics???

 

I had my AEM WB like that...around 4 o clock. It hung low and a big speedbump claimed it; shorted out the gauge so I got a bung put it at 2 and no more problems.

 

Try flipping the test pipe around and see where that puts the bung on the other side. Thats what i did with my HFC and it fit perfect that way and aimed it at the grommet where you need to run the wire.

 

Yeah I'm a little worried about that but I think the sensor that's in there now has been there for a long time so I don't think that will be too big of an issue.

 

I'm not sure if it's the same for all widebands but I thought they said to install 3 feet from the turbo. I agree with everyone else that they say that just for moisture.

 

That position will allow condensation to accumulate on the sensor. It will ruin the sensor and make it yield incorrect readings. You should definitely reinstall it in a better position. (between 9-3)

 

Yeah that's what I had heard. My question is would it be cheaper and easier to have the bung moved on the pipe or just get a different pipe altogether that already has the bung in the proper position? And since the pipe that the sensor is in now is part of the cat-back system would it be cheaper and easier to just get a different test pipe that already has the bung in the proper position for a wideband, if such a thing exists?

 

have a muffler shop put a bung on the test pipe, at the 3 oclock pos. put a plug in that hole.

 

That's one of the routes I was thinking about taking. I'll call around to some shops on Monday to see what they would charge.

 

If u read the directions it tells u to install it 36 inches away from the turbo and says put if before the cat or test pipe so u can get the most accurate readings. All reputable tuners I've spoken to have said to put the bung at the end of the downpipe. I would find a plug and plug the existing bung and get a new one welded on ur dp around 1 o clock looking from the back of the car. There's a grommet that goes right up to the passenger side floor board area that makes installation to easy.

 

This is how I installed mine a long time ago: https://www.evolutionm.net/forums/ev...r-install.html

Never had any issues with it.

l8r)

 

I just took my downpipe to a muffler shop.. Payed 10 Dollars to have the bung put in at 12. It took 10 mins. Worth the money! Good Luck

 

just make sure you are art the correct distance from the turbo, it will make a difference in the reading, also you can pull some slack back up into the car this way you dont end up with a big service loop outside the car like you have now