That was a typo, a big one
I wanted to say, it's dead nuts accurate, out of the box.
When I got mine I chased the fuel like you are doing and got lost. Than what I noticed with zero correction factor was the numbers constantly came in at +/-1%. Did you see the data I posted on this a few pages back?
The ONLY time I see 9999 is when the engine is braking the slowing car ie foot off the gas and no brakes. If you see it at other rimes I'd call them and ask if your is broken.
The only other issue I have seen are:
The fuel flow is off when going WOT and the EUC goes open loop at WOT. I measured 17% low when I did about 300 miles of P&G using WOT on the pulse.
The other issue is it gets lost on the miles if you FAS if you don't tell it to be a hybrid.
Here's my data again
Look at the right to columns
