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Old 04-06-2013, 11:00 PM's Avatar is online now
MC Maniac
Join Date: May 2010
Boat: 1989 MasterCraft TriStar 190 SE
Location: Houston, TX
Posts: 3,607
Originally Posted by kainishida View Post
I appreciate your help.

I ran voltage on the Mefi relay and had 12v constant and switched. I swapped the Mefi and the Fuel pump Relay with no success.
If it's not the mefi relay ground, it sounds like you need to disconnect battery and component connections and do resistance check of wires from mefi to fuel pump relay and ecm to look for an open circuit.

1989 MasterCraft TriStar 190 SE

Last edited by; 04-06-2013 at 11:14 PM.
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