After much troubleshooting, I have finally gotten my recently acquired SPI Mini so that it runs beautifully. It idles spot on the target rpm, accelerates and runs without a hiccup, and seemingly produces good power.
However, I am finding that my fuel mileage is only about 20 (US) miles per gallon. That just seems way low from what I've come to expect. My driving is mostly short, stop and go, and I'm not a gentle driver, yet not abusive either.
Should I be expecting more?
I have the Mems-Diag Android diagnostic software, which works great and shows all manner of parameters, including timing adjustment, O2 sensor voltage, etc.
Wonder if anyone has a chart of "normal" readings that might help me pinpoint my problem, if I have one?
Edited by pauldridge, 29 August 2017 - 01:14 PM.