Hello Im new to the skoolies but my dad is a diesel mechanic i just got a 2007 Freightliner F-65 with the Mercedes-Benz MBE900 i bought it 3 days ago and the day i went to look at it up it took about 20 seconds to crank over didn't think to much about it i went with my dad yesterday to pick it up and when we got there it took us about 30 mins to get it started i now have it on my parents property went to start it today and it wont turn over just cranks i have a code ECU128 diag 1. Any information will help