My ecu may have been fried by a mechanic. It went in running now doesn’t. Looking for a good working ECU to buy

Contact BUP on here. He repairs ecu's.

Thanks for putting my name on this John. Currently I am holding strong a 96 percent rate for repairs on the 555 s.

I get 1 to 3 Merc 555 s per day in for repairs and calibrations. Merc racing 1075 sci all the way down to the V 6 mpi mercruiser and all the Optimax pcm 555 on the outboard side. EVERYDAY

Past 10 days worth of ECM 555 and PCM 555 and Mercruiser Visteon Catalyst engines ECM s.

and these within the past 10 days for repairs and calibrations

Tried contacting you BUP but says your inbox is maxed out and won’t take any new. Looking to pull ecu and get it sent off.

Sorry about that. I freed up some room currently.

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THANKS

I can get you almost NIB or a NIB , these are from a certified merc dealer.

But they still have very weak internals from the being new actually weak drivers -- weak eeprom - weak capacitors and so on. Also they are very app specific. Wrong pcm / ecm there goes the engines.

BUP you can program it for the Dana exhaust as well and or is it needed to run exhaust.