bowtieman81

iTrader: (35)

This used to work perfectly, so it must be something I did. I am trying to tune OLSD. I have the commanded afr, lc-1 eio, and afr & error loaded onto the table. The lc-1 and commanded are reading just fine, but the % error reads -100 in all cells.

The only change I have made is a reprogrammed my LC-1 to record a/f ratios in the range of 10-18, based on a 0-5V range. Is this what is messing me up? If so, can somebody tell me how to correct it?

SSpdDmon

iTrader: (10)

Did you alter the AFR calculation for the LC1 in the scanner? If the scanner is reading the voltage as a different AFR because it's still using the equation where 0V=7.35AFR and 5V=22.35AFR, then yes that could be the source of your error. You can check it by reading the voltage and doing a quick calculation on your own.

bowtieman81

iTrader: (35)

Yep, I altered that in the scanner. That is why I am confused as to what is going on. In the afr histogram it works perfectly, it is just the % error histogram that does not work.

foff667

iTrader: (2)

worst case scenerio is you make up a custom PID...send me a log file to whenn1@verizon.net & I'll see if I can put something together for you real quick.

bowtieman81

iTrader: (35)

Thanks for the offer; I will send you the file when I get home tonight.