o2 sensor placement??? on FI setup

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Oct 23, 2012 | 10:32 AM

#11

slow67

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From: DFW

Has anyone tried to set all of the O2s to all be in the same bank?

Last edited by slow67; Oct 23, 2012 at 10:56 AM.

Oct 23, 2012 | 10:45 AM

#12

Atomic

I have a gauge for that

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From: Huntsville, AL

Quote:

Originally Posted by BIGHAL

I have Both o2s on my Downpipe and I'm having troubles. My fuel trims are reading -20 bank 1 and 19 on bank 2. Both brand new o2s from GM. When it goes to closed loop it mifires and runs rich/lean. Where does the other sensor need to be? Help me here lol...

You have a big exhaust leak.

In general you want to keep the wideband out of the pre-turbo pipes. The pressure before the turbo skews the wideband readings pretty significantly.

Oct 23, 2012 | 11:44 AM

#13

TrickTurbo

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From: Wichita Falls Tx.

Quote:

Originally Posted by slow67

Has anyone tried to set all of the O2s to all be in the same bank?

It doesn't like it.
Exp.
The computer does something to driver side fueling. But won't see a change in the 2 o2's. so it try's again and more, etc.
no seeing a change the computer will throw a code.

It happened by accident on an old build won't make that mistake again.

Oct 23, 2012 | 12:28 PM

#14

slow67

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From: DFW

Quote:

Originally Posted by TrickPerformanceProducts

No, I mean setting the tune so it thinks all 8 injectors are on the same bank. B3704 in EFILive, or in HPT its under Engine > Fuel > General > Injector Bank Select.