Datalog I did today, 93 octane, 20 PSI

I am no pro but to me it looks pretty rich all the way from 3k - 7k..

maybe reduce the fuel multiplier a bit for quick fix (maybe reduce it by 1000-2000) or recalibrate the maf curves to be a bit higher at the rich voltages..

spdbydesign said:

Here's a log I did today on 93 octane, just did the switch to E85 after draining the tank tonight....very curious to see how she performs corn fed.

Click to expand...

85% af correction is too rich ecu is having to remove 15% fuel to hit afr targets.