8 to 1 Headers and 02 sensors

[Doss188]

Hello,

I am building a rat rod and using a 2004 chevy 5.3 motor. I am planning on running an 8 to 1 header set up. I am trying to understand what i need to do with the two front 02 sensors. Can i install both in the same pipe downstream of the collector, if so is there settings that need to be changed in the computer? or is there a way to tune the computer to only run 1 02 sensor. I am new to tuning so any help is appreciated.

Thanks

[SiriusC1024]

You can run just one and adjust Fuel>General>Injector Bank Select to match.

[TheMechanic]

Pretty much two options.
1. Run an O2 in a left and right bank primary tube. It will only get fuel control from THAT cylinder. Not a great solution.
2. Run open loop with no O2 sensor input at all. You will have a lot of tuning to do with a wideband and maybe a single O2 downstream. Proceed with a lot of caution.
3. Dump the 8 into 1 and find something else unique to have that won't mean it will run all sh*tty.

[TheMechanic]

You can run just one and adjust Fuel>General>Injector Bank Select to match.

So you run them all zero and only look at the B1S1?

[SiriusC1024]

Yeah and wiring.
https://lowbuckls.com/closed-loop-wi...the-stock-ecm/

[Doss188]

Yeah and wiring.
https://lowbuckls.com/closed-loop-wi...the-stock-ecm/

Thanks for the reply, that looks like what i was looking for.