colorsetter
New member
Whenever its very hot out or after making a long run to a fishing spot the Mercury outboard 2001 EFI SN# 0T272390 will not restart. After thinking it was and ignition problem and testing spark when this occurs I have determined that the injectors will stop firing. Fuel pressure #34-#36 psi so fuel is applied to rail. Leaning towards control module but I had replaced it early on. Burcato ACU. Switched ACU with known good one and that didnt correct it. Once engine cools down it will run again.