The M102 is not EFI, its CIS, which is a hybrid electro-hydraulically-adjusted-mechanical fuel system. EFI means electronic fuel injection.

When working properly its great, when its not, its a pain. For some reason in my experience the smaller motors (M102, M103) seem to be a pain to keep running right vs. the bigger engines like the M116. We've put 35,000+ miles on our two v8's in the family and have had virtually no issues with them at all. The M103 and M102 I had both were a pain and rarely went over 2-3k miles without issues.


Edit: I see you have converted your M102 and M103 to MS system. Thats cheating.

I'd love to convert my M116 to MS, but the cost and work required would probably be huge....

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