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Zinger

03-07-2022 08:48 AM

Ecm

I looking for someone that knows about A 500EFI ecm model 840136T2. I have a set-up but no harness or ECM what are my other options?

GPM	03-07-2022 02:14 PM

Aftermarket, probably easier to tune

articfriends

03-07-2022 07:49 PM

Yep, theres virtually no mefi3s to be had left out there. or virgin harneses, if you find one, buy it! A used mefi3 programmed for a 500 EFI is 1500$ these days and most harnesses are hacked up or few and far between. Take that 2000+ $ your gonna sepnd on used electronics anbd buy new, Smitty

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