Hello, i have the 2009 Mercruiser 350MAG MPI with ECM555 (Non DTS) ECU. I want to buy one scan tool for my new engine and i found that : http://www.mefi4.com/sc/details.asp?item=mefiscan1
I want to ask you some questions if you know.
1)will i need in future this tool for possible engine faults...