I have read multiple places that this is the place where all the smart people hang out, so I am hoping someone can get me off high center. I am looking to read data/codes from my Volvo Penta motor running an MEFI 4B ECU. Is there as solution for this? I have built a cable to interface to the PC, but looking for software. TunerPro is an option, but I think I have to have a file to interpret the data and I don't have that. MEFIburn is an option, but it is just repackaged tunerpro with a $20 cable so I hate to pay $200 for that. Hoping someone here can help or knows.

TIA,
-Keith