Rear o2 Sensor?

[DxmaSonxM]

So I just got my AEM Wideband in today and I was wondering if I could just install it in place of my rear o2 sensor? I have dsmlink v3 if that would make a difference. Ive hear it will throw a CEL.

 

[RadDsm]

The rear o2 is too far back.
Your best bet would be to plug the o2 hole, and put the wideband in the front o2 bung with a copper heatsink and simulate the narrowband with v3.

 

[DxmaSonxM]

Really? I'm just wondering since I've had a few people tell me to do that. I'll probably just weld a new one in. Seems the easiest.

 

[JusMX141]

We installed the wideband sensor in the rear o2 hole on my buddy's 2G a few summers ago. This was originally intended to be a temporary spot, but it worked great. The car had a gutted cat (in place for PA visual inspection), and we simply turned off the CEL for the OEM rear sensor using Link.

It's not too far back- there are cars without widebands installed that are dyno-tuned using a wideband sensor placed in the muffler, clear at the back. Works fine as long as you're not running a cat.

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[XiKeiyaZI]

Leave it to Jus to clear that up. I had actually been wondering if using the Rear 02 placement would be beneficial/feasible but dared not ask, only look. Haha.

That is an awesome picture though. I would have never guessed as much.

 

[RadDsm]

The reason I say it's too far back, is there are many spots for an exhaust leak (flex section, 3 extra gaskets) and the distance can cause a delay in the gauge.

It will work though.

 

[LiquidX]

The rear is fine to use as you don't have the cat installed as Justin mentioned. The only issue that would arrise is there is more places for exhaust leaks to occur which will throw the reading off, i.e. flex section.

The front o2 is an excellent spot especially being that the closer to the combustion chamber you are, the more accurate the readings will be. There is no need for a heat sink either. If you choose the front, enable narrow band simulation. If the rear, then uncheck the CEL check for the rear o2.

Looks like Chris typed a bit faster than I did

 

[DxmaSonxM]

The rear is fine to use as you don't have the cat installed as Justin mentioned. The only issue that would arrise is there is more places for exhaust leaks to occur which will throw the reading off, i.e. flex section.

The front o2 is an excellent spot especially being that the closer to the combustion chamber you are, the more accurate the readings will be. There is no need for a heat sink either. If you choose the front, enable narrow band simulation. If the rear, then uncheck the CEL check for the rear o2.

Looks like Chris typed a bit faster than I did

Well I have decided to go with the front. How would I enable narrowband simulation?

 

[snowborder714]

You'll go to the narrowband simulation screen and use the page below to set it up.
v3narrowbandsim [ECMTuning - wiki]

 

[DxmaSonxM]

Alright, well I got almost everything hooked up. I just want to know where the blue and white wires go to?

 

[LiquidX]

What do the instructions say?