Hello,

I'd like to put an AFR gauge on my FD, and in an effort not to take the DP off and poke and hole, I was wondering if there is a wide-band O2 sensor that would:

go at the same spot as the stock one
send the same stock rich, lean signal (not to upset the PCM)
send the afr to an external gauge
??

There would have to be some electronics in it I am guessing..

Anyway, thanks for the feedback

Joel

 

The stock location is too close for a wideband sensor. You risk burning the sensor up having it too close. the best location is at the end of the downpipe. The thread pitch is the same though, so you "can" mount any wideband sensor in the stock location. Just not recommended.

With that said most all the popular widebands out there have a narrowband simulation lead that you connect to the stock O2 sensor wire. And most all of them have some sort of gauge that either comes with it or can be purchased separately.

Look at innovative they have a good product.

 

Thanks for the advice, I'll take a look at them.

I am just worried that if I change the location of the stock O2 sensor that will throw off the afr control a little especially transient (well it's got to be open loop at WOT anyways :o)

 

+1 for Innovate.

I would suggest that your local dyno shop could install the bung for cheap.

 

Distance won't matter. When you get a car dyno tuned they are typically mounted in the tail pipe. In the downpipe just before the midpipe or cat is the recommended location.

 

i have a wideband for sale if you need one XD
yes - it can be wired for stock sensor replacement too, but i would recommend mounting it farther back as others have said

 

I have the Innovative LC-1 setup with PFC and separate XD-16 gauge (I think those are the right numbers). Have used the stock bung position for around 5 years with no issues.

 

Thanks for your feedback all, it's much appreciated.

Well in nowadays car it does matter, they keep a tight closed loop control so if your O2 sensor is far from your exhaust flange the transportation delay increases and the system can't be as reactive.

In our (old) cars, probably not as much I agree.