I have a 98 5.7 and the ECM left number three injector turned on at all times. Replaced computer with a reman from Orileys I was able to get the tune loaded but the vin shows up as YYYYYYYYYYYYY. I am having trouble tuning because I can only log a few PID such as eng temp rmp stft and ltft I don't have anything to log for commanded EQ. Does the ECM need to be flashed by a dealer to have the proper firm wear. What am I mising ?