Dyno with wideband O2 in the front o2 sensor location?

[StangJason]

Ok I want to start by saying I went to a dyno where the guy says I can't put the wideband O2 in the front O2 sensor location because it will trigger the engine light and mess up the dyno runs. The problem is that the rear O2 sensor is giving off readings I'm sure are much too leaner than they should be not allowing me to get a proper tune.

Here's my question: On the 03/04 Cobra's will the engine run properly for dyno runs and tuning if I have him put the wideband on the O2 anyways or the 03/04 Cobra an exception to earlier model Mustangs that I've read have no problems with this?

side note: my rear O2s are turned off

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[Oncebitten03]

i run mine in my rear 02 location on the drivers side.. i asked a few trusted shops and said it was fine. my rears are turned off too

plenty of people out there tune with a sensor in the tail pipe, usually road tuning, so i highly doubt having it in the rear sensor location, like 3 ft further back will effect anything.

 

[Wiked03]

If you don't have cats, you can run the sensor in the rear 02s. If you do, just spend 40 bucks and have bung welded in.

 

[Oncebitten03]

If you don't have cats, you can run the sensor in the rear 02s. If you do, just spend 40 bucks and have bung welded in.

word

 

[StangJason]

I have the magnaflow x-pipe with catalytic converters . I was under the impression that I could remove the front O2 sensor and place the wideband O2 in it's place without affecting my dyno pulls so is this not true? I guess I'll be visiting the local muffler shop this weekend but I hope they have a plug for the hole they'll be making.

 

[Flatliner]

Check with our supporting vendors, if not call Hans at Dean's Performance(Elburn-just west of St.Charles), 630 365 6099. He welded my bung in.

 

[Wiked03]

I have the magnaflow x-pipe with catalytic converters . I was under the impression that I could remove the front O2 sensor and place the wideband O2 in it's place without affecting my dyno pulls so is this not true? I guess I'll be visiting the local muffler shop this weekend but I hope they have a plug for the hole they'll be making.

The new bung will have a plug no worries. I don't think you can use the front ones, the computer needs those and might freak out without em.

 

[slow lane]

Pulling a front O2 sensor should have zero impact on dyno results. The computer doesn't use any of the stock sensors at wide open throttle, and won't go into any type of safe mode if you pull them at the dyno facility.

If you're going to be running your own wideband, get a bung installed.

 

[Shaggy]

im gonna be welding mine in, is there a side that is better to run it on, ive heard with engines in general sometimes one side runs leaner.

 

[Shaggy]

just bumping this up, kinda need to know asap. does it matter which side you mount the wideband sensor on?

 

[Wiked03]

I have always heard drivers side, but I am not sure if there is a difference.

 

[The Pun]

I got a bung in on the passenger side per Herman when he tuned Bigonts car in the spring. I bought his old x-pipe.

 

[Shaggy]

so then passenger side?

 

[The Pun]

so then passenger side?

Ask your tuner or do a search on mod fords maybe

 

[DynotuneMP]

Driveside if your going to put one in.

 

[Shaggy]

cool, thanks. now if only my fucking welder would stop being retarded