I just got my datalogger this week and qwanted to log my fuel trim to see why im running so rich. Im on a rebuilt motor with 440CC and S-FMU.

Here is what ive log in a 10miles run.

Short fuel trim was between -6 and -25, most of the time it was at -14 then on the interstate I got -25 for a moment.

My long trim is 95% of the time at -25.

Ive never pass 3300rpm in this log.

My timing was at 4 for the lowest and hit 40 one time.

Also, my coolant sensor will stay between 200-206, it seem to be high?

Got a cel for positive pressure (mising link defective sometime) and got a cel for rich bank1.