Keep or ditch front O2's for Open Loop tune

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Feb 3, 2011 | 12:34 AM

typhoon1015

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From: Chippewa Falls, WI

Keep or ditch front O2's for Open Loop tune

Im in the process of repinning the harness and came to the 02 sensors. I know its normal rule of thumb to get rid of the back o2's, but when running a OL tune, what benefit would i have by keeping the front sensors?

I plan on a Speed Density OL tune which uses predetermined values in the bin files. Is there any other need for them or can I just delete them off the harness?

Is there a way to run a 0-5 volt (from wideband) to the ecm and have it work in closed loop fueling?

Im planning on using a single wideband and ditching the stock o2's, unless there is a dying need to ever keep them around.

Thanks

Feb 3, 2011 | 07:20 PM

edcmat-l1

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From: Va Beach

Quote:

Originally Posted by typhoon1015

If you're going to run open loop, there's no need for any O2s.

Quote:

Originally Posted by typhoon1015

I plan on a Speed Density OL tune which uses predetermined values in the bin files. Is there any other need for them or can I just delete them off the harness?

See above answer.

Quote:

Originally Posted by typhoon1015

Is there a way to run a 0-5 volt (from wideband) to the ecm and have it work in closed loop fueling?

No. And why? If you don't want to run closed loop with narrow bands, why would you want to run closed loop with a WB?

Quote:

Originally Posted by typhoon1015

Im planning on using a single wideband and ditching the stock o2's, unless there is a dying need to ever keep them around.

Thanks

I would question why you would want to run open loop anyways. What's the setup? Race car only? Crazy cam? I've run plenty of radical setups in closed loop.

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