Hey everyone, I've been playing with TPI cars for awhile, so when I picked up an 89 TTA, I thought that I could use Diacom to tune it. Well, after the first time I linked to the car, I was a little dissapointed. There is not near as much data available as there was with the TPI cars. No Injector Duty Cycle, Fuel Pump Voltage, Timing Advance, Knock Retard, etc... Does anyone here use Diacom to tune? I'm debating if I should consider picking up a different scan tool. Any advice would be appreciated. Thanks!