Logo

1999 mercury efi 150

jessie00721

New member
Hello,

I have a slight problem with a 1999 mercury 150efi. It is hard to start but once you get it started and warms up after a minute or so, it will start right up. any idea what could cause this problem. I put a fuel pressure gauge coming off the pump and think it was 40+ psi. Also, have the oil pumps lines disconnected and I am using premixed gas right now. any ideas would be great! Thanx
 
I have also noticed that after letting it warm up a minute or so it will eventually die out. Seems like a fuel issue. Pulled intake plate off and all the injectors are firing.
 
Back
Top