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Can you change individual banks or injectors

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Old 04-26-2006, 03:07 PM
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Default Can you change individual banks or injectors

I am pretty sure you can't change individual injectors setting to increase or decrease fuel with the factory system. Is there a way to change an entire bank to increase or decrease fuel inrelation to the opposite? Say Bank 1 is 2-4% fatter than bank 2 or vice versa.

We're going to add a second wideband setup on the opposite side of the car to see what the actual difference between both banks.
Phil
Old 04-26-2006, 03:25 PM
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only way i know to do it is to enable closed loop.

I'm fighting a lean left bank at the moment
Old 04-26-2006, 03:34 PM
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And with Closed loop enabled its based off the factory O2s....
Old 04-26-2006, 04:22 PM
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this would be good if you could. seems the PCM correlates the 2 and comes up with a medium of the two. not very accurate IMO.
Old 04-26-2006, 07:34 PM
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I guess the only real way to do it with high resolution is to replace the factory O2s with wideband units.
Old 04-26-2006, 07:41 PM
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You could test large batches of injectors and keep
track of them unit by unit, then put groups that
are bankwise tight but offset.

You could run dual fuel pressure regulators and
straight dial it to match bank mixture. But if you
care that much about banks you probably also
care about cylinder-cylinder? Where does it end?
Old 04-26-2006, 07:55 PM
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Originally Posted by jimmyblue
You could test large batches of injectors and keep
track of them unit by unit, then put groups that
are bankwise tight but offset.

You could run dual fuel pressure regulators and
straight dial it to match bank mixture. But if you
care that much about banks you probably also
care about cylinder-cylinder? Where does it end?

A wideband for each cylinder and a PCM that can tune individual cylinders.



If you're gonna dream, dream big!
Old 04-27-2006, 05:38 AM
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Originally Posted by Phil99vette
I guess the only real way to do it with high resolution is to replace the factory O2s with wideband units.
I'll let you know how it goes
Old 04-27-2006, 07:55 AM
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the O2 rich lean switchpoints can be set independantly for each bank and the fuel trims are calculated independantly for each bank and are not averaged.

switch the wires to the wrong side O2 sensors to see what i mean
Old 04-27-2006, 08:39 AM
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Yes, the o2 switchpoint are the way ive evened them out in the past.
Old 09-10-2011, 11:18 PM
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I know this thread is old, but at the moment I am having about a 7-8 percent difference between banks.
Bank1=0%
Bank2=Negative 7-8%

Is the above still recommended on fixing this issue?
Old 09-12-2011, 10:23 PM
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Anything?




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