lc1 stuck on 4.75 afr

[Gregs]

I tried the free air calibration and it didn't change anything. am i missing something?

[Gregs]

figured it out, the lc1 somehow thought that 1720:1 was the value for lambda! Its kinda weird that it reprogrammed itself, i haven't reprogrammed it in over 6 months??

[joecar]

Glad you found it :cheers:

Some of us have noted the LC-1 reprograms itself out-of-the-blue with a different stoich AFR.

[Chevy366]

figured it out, the lc1 somehow thought that 1720:1 was the value for lambda! Its kinda weird that it reprogrammed itself, i haven't reprogrammed it in over 6 months??
The LC-1 has a history of that with the 1.10 firmware .

[ScarabEpic22]

Yup mine did that a few months back, had to buy a USB->Serial adapter so I could read then reprogram it so it reads correctly again. Innovate, can you update your WB to 1999 already? Sheesh, the last machine I built with a serial port was back in 2003.

[Gregs]

Some of us have noted the LC-1 reprograms itself out-of-the-blue with a different stoich AFR.

well that's convenient :shock:

[Gregs]

i'm using the wb as my simulated nb and i noticed that the truck didn't sound right at idle and was vibrating. then i checked the scanner and bank 1 ltft was -18 so i knew something was up