I have a 2014 mercury efi 150 4 stroke that starts running bad and shaking when the motor is trimmed up or at around 2500 rpms. Isolated the fuel tank and the problem still exist. Check fuel rail pressure while on the water always at 40 psi idling and 50P.Sl. at higher rpms. Replaced all the filters all the fuel lines. Remove the VST tank to check.
And it was clean. I had it at a mercury dealership for twenty one days and they could find nothing wrong with it on the dino and it had no codes. I'm at a loss.I don't know what to check next.
And it was clean. I had it at a mercury dealership for twenty one days and they could find nothing wrong with it on the dino and it had no codes. I'm at a loss.I don't know what to check next.