Best location for a wideband O2

ritc · Oct 13, 2006

What would be the place to put in a wideband O2 to get the most accurate reading on a h-pipe/x-pipe system for a stang? Or is there one that usually runs leaner?

I am coming from a FWD V6 2 to 1 y-pipe setup which was a no brainer, I just dont like the idea that the wideband would only be on one side, but I see many examples like this when searching, so is there really no harm?

Also where can I purchase a PMS tuner? After some reading I decided I eventually wanted to go with a PMS tuner and PLX R300 wideband kit, I just cant seem to find any links on where to purchase a PMS.

millhouse · Oct 13, 2006

The driverside is the leaner bank...atleast I hope, as that's where I located mine.

interceptor7 · Oct 13, 2006

I'm sure someone will point out if I'm completely wrong, but couldnt you run 2 O2 sensors (one on each bank) wired to an "on-off-on" switch so you can switch back and forth between monitoring either bank?

Daggar · Oct 13, 2006

I'm sure you could but I don't think that it's necessary.

I have mine mounted in the right bank (the richer bank as millhouse suggested). All that is required is that I be mindful of that. When I tune, I tune .1 - .2 richer than what is indicated to ensure that I'm not starving the leaner left bank.

The REASON why I installed it in the right bank was because that is the place that I found that made it easiest for installation. I can get to the sensor if I need to.... The sensor is correctly clocked so that it does NOT sit at the 6 O'clk position... I was able to find easy access wire routing through one of the rubber grommets going through the pass side floor board.

The bottom line is to plan out your install before eyou mount the sensor so you know how it will all be run.

millhouse · Oct 13, 2006

interceptor7 said:
I'm sure someone will point out if I'm completely wrong, but couldnt you run 2 O2 sensors (one on each bank) wired to an "on-off-on" switch so you can switch back and forth between monitoring either bank?

You could…but is the extra expense really worth it? Actually, the innovative wideband that I have self calibrates and warms up every time I turn the car on. The process takes a several seconds…and flipping the switch would effectively turn one on and the other off while the vehicle is running. You are not supposed to have the wideband 02 hooked up and not running as it can damage the unit itself.

Anyways, If you know which bank is the leaner…then that should always be the worst case. Monitoring the "richer" bank then really wouldn’t be necessary…unless you had a way to tune each bank individually.

interceptor7 · Oct 13, 2006

millhouse said:
You could…but is the extra expense really worth it? Actually, the innovative wideband that I have self calibrates and warms up every time I turn the car on. The process takes a several seconds…and flipping the switch would effectively turn one on and the other off while the vehicle is running. You are not supposed to have the wideband 02 hooked up and not running as it can damage the unit itself.

Anyways, If you know which bank is the leaner…then that should always be the worst case. Monitoring the "richer" bank then really wouldn’t be necessary…unless you had a way to tune each bank individually.

NP. I was just thinking in a (fictional!) "I have all this extra money to burn" mode.

thehueypilot · Oct 13, 2006

Mine is also on the right side but mounted in the end of the long tube header collector in the 3 o'clock position. I did not know one side was leaner than the other but I guess I could move it to the other side to confirm?

Daggar · Oct 13, 2006

thehueypilot said:
Mine is also on the right side but mounted in the end of the long tube header collector in the 3 o'clock position. I did not know one side was leaner than the other but I guess I could move it to the other side to confirm?

It's only an issue if you tune right on the ragged edge.

ritc · Oct 13, 2006

Definitly makes sense to go the easier route with wiring/position of the O2 if the lean/rich difference between each bank is minimal.

vristang · Oct 13, 2006

How are you guys locating the wb in relation to the stock O2's?

How far away, and at what angle?

jason

millhouse · Oct 13, 2006

With the wideband it really doesnt matter where it is in relations to the stock 02's. The biggest thing you need to ensure is that you clock it between 9 and 3...the closer to verticle the better.

vristang · Oct 13, 2006

cool.

Next question is...

Why keep the wb close to vertical?

millhouse · Oct 13, 2006

vristang said:
cool.

Next question is...

Why keep the wb close to vertical?

Because condensation and pooling water will destroy em.

vristang · Oct 13, 2006

millhouse said:
Because condensation and pooling water will destroy em.

Thanks for the response!

Daggar · Oct 13, 2006

...and... So long as it's before the cats (if running cats) then you're golden.

Best location for a wideband O2

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