Bank 1 to Bank 2 Injector Pulse time

[BRD-PREY]

I also have .1 to .2msec less on bank 1. I have to WBO2 right next to factory NB's. I notice AFR is also about .2 to .4 lower on bank 1. So, my initial though is the NB sensor on bank 1 reads a little leaner.
So the PCU can correct each bank independently, how does it do this? I guess no parameters are controlled therefore its just looks at each side with the values of the sensor inputs and deal with them independently.

I this is question is a little acedemic because I'm just searching for knowledge. I will swap the factory O2 between banks and see if the INJPW differents moves with the sensor.

Ed

[BRD-PREY]

So, no one knows how the banks are handled independently?

[joecar]

Hi Ed,

Yes, the PCM can trim each bank separately using the front O2 sensors.

[joecar]

Ed,

If you have an LS1, then the injector pulse width pids are IBPW1 and IBPW2.

Yes, that's a good test, swapping the front sensors will tell you if it is sensor related.

[BRD-PREY]

Thanks Joecar, Those are PID are where msec numbers came from. I was asking if there is table to etc like B4001 but that is some kind of differential between the banks.
Ed

[5.7ute]

Thanks Joecar, Those are PID are where msec numbers came from. I was asking if there is table to etc like B4001 but that is some kind of differential between the banks.
Ed

If the wideband reads the same AFR for both banks while in open loop, and the trims are throwing this off you can play with the switchpoints for each bank independently.{B4105}
If however like 99.9% of the engines around, mismatched injectors are giving you different readings for both banks. You will need to either let the pcm trim independantly for both banks & live with it. Or get the injectors flowed & matched.

[BRD-PREY]

My tune doesn't have a B4105, I have a COS5.

[5.7ute]

I run COS5 & have B4105 o2 switch point. Post up your tune file.

[BRD-PREY]

Thats wierd I used the search function last night and it found B4109 B4105 that I typed. I was tired. I found it this morning.

Ed