WBO2 is off from NBO2

[joecar]

I'm still looking thru your files...

[joecar]

An airleak up to 12" past the the NBO2 can effect the NBO2 (the low pressure behind each exhaust pulse can sharply suck air in).

[RADustin]

the only place air could enter would be about 1.5" ahead of the NB02 where the collectors meet the headers.

so my thought is that if I do have a leak(doesn't look like it) the NB02s would see this air as well as the WB02.

[ACCLR8N]

My LC-1 doesn't agree with my NBs either. I added a 1.8% fudge factor to my calc PIDs to compensate. I chalked it up to sensor tolerances.

[RADustin]

I'm like 3+ percent off.

I had to pull a header as the coating wrinkled, but when it's back together I am going to use the innovate software to compare the WBO2 to itself reading it thru the ecu and thru the innovate software.

I really don't want to fudge things, but I do admit I believe the NBO2s over the WBO2.

[ACCLR8N]

How old are your NBO2s? It is not so much believing them over your WB, they are running the engine and your correction factors will be thrown off by the deviation. How come you are not taking advantage of the LC-2 serial connection directly into EFI Live?

[joecar]

...
How come you are not taking advantage of the LC-2 serial connection directly into EFI Live?

+1

see here:
serial-port-cable-that-goes-to-v2-->post#3
FlashScan-to-LC-1-Serial-Cable-Diagram

(LC-1, LC-2, LM-1, LM-2 serial comms are all the same)

[RADustin]

How old are your NBO2s? It is not so much believing them over your WB, they are running the engine and your correction factors will be thrown off by the deviation. How come you are not taking advantage of the LC-2 serial connection directly into EFI Live?

I am running LC-2 into ECU through the a/c port so that I can setup something like the app Torque later on to monitor everything. The vehicle platform is an old truck and I'd like to keep the cockpit clean without the additional boost and WB02 gauges. Probably dumb in your opinion but I'm only slightly OCD.

The 02s are what came with the motor when I got it. Its a ~60k mile pull out. They could be original but they read similar to each other so I would assume they are reliable. All 02 sensors are mounted at 12 position so moisture isn't an issue.

+1

see here:
serial-port-cable-that-goes-to-v2-->post#3
FlashScan-to-LC-1-Serial-Cable-Diagram

(LC-1, LC-2, LM-1, LM-2 serial comms are all the same)

I will look into this.

Thanks.

[RADustin]

well I have the null modem connector already so it looks like it is simple plug and play and change my calc.pids file.

edit-

if it is off I should be able to chart my two different AFR readings to 'scale' the one run through my ecu.

[ACCLR8N]

Your AC pressure is averaging 2.7V. Isn't that lean? 1.05 lambda