Which wideband are you using w/EFI Live?

[BlackGMC]

I have my ground connected to a bare spot under the dash and I have also ran a wire from there to the battery... I have also connected a wire from that central point to the ground spot on the cable. I am getting my power from the fuse box..

[TFZ_Z06]

Just to add to the topic.
If you are using the analog inputs I have noticed that the ground offset voltage is a moving target. To solve this problem I made a change in the lm-1 programmer software to the output voltage to match the lc-1 tutorial. Then set the other channel to a flatline of 2.5 volts.
I then changed the LC-1 pid in the programme files/efilive/V7/user configuration/sae generic txt file to (({EXT.AD1}-({EXT.AD2}-2.5)*3)+7.35 .
The only problem with this method is if you update efilive you will lose the file so it would be better to make it as a calc pid.

How has the voltage offset calc been working out? I'm installing my LC1 in the next day. So, by what you've done no matter where the variance, you subtract off the offset in AD2.

Wonder what causes the offset though. I plan to wire ground to the chassis. I hope this works.

[5.7ute]

I am not sure where the variance comes from. I use the cig lighter plug for power so that could cause the issue.
As for the calc it has been working real good. It has brought the logged value much closer to the display & has had an added effect of bringing bens into line much faster.
FWIW the variance in my car is around 0.02 of a volt & follows no set pattern.

[TFZ_Z06]

Look at this log please and see if this looks correct. Just finished the install for LC1.
http://home.comcast.net/~booth.p/lc1_test_log.efi

I think I should be using WideBand AFR2 - LC1? I was using AFR1, which I guess was using AD1? Off to log again...
heres one logging both.
http://home.comcast.net/~booth.p/lc1_test_log2.efi

wot at 9.95. WTF.
http://home.comcast.net/~booth.p/qkwot.efi

[5.7ute]

I cant look here as I dont have V5 installed yet.(Dial up) Can you post a screenshot of the chart dash with both analog inputs.

[TFZ_Z06]

Analog1 is throwing me off. I need to set both AFR for all voltages to 1.0 or something I can recognize.

IDLE:



WOT: Its 97F outside, but this wideband has the be WAY OFF because I'm getting a reading of 9.95:1 AND the car is running really well so it just can't be right.

This is filtered for greater than 80% TP. 9.95:1

[TFZ_Z06]

appreciate any comments. Before I go out and lean on the engine, I need to check this out.

[joecar]

You may want to set your LC-1 to do 1/3 or 1/6 smoothing (this is programmable via the LM Programmer software)

[TFZ_Z06]

You may want to set your LC-1 to do 1/3 or 1/6 smoothing (this is programmable via the LM Programmer software)

Just so I'm clear, for Analog2:

1v = 10AFR
2v = 20AFR

Analog1:

0.8833 = 10AFR
4.21667 = 20AFR

[joecar]

Are you using:
-> LC-1 pids for analog 1
-> LM-1 pids for analog 2

To smooth out the wideband AFR signal, go into the LM Programmer software, and on the Analog 1 and Analog 2 tabs set the smoothing to 1/3, 1/6 or 1/12.

This will smooth out your WB signal (it seems to be following the B2S1 NBO2 blow-by-blow).