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On my third ECM and found this as I did a continuity test on engine harness Part# 801066 for my 2004 Malibu Wakesetter VLX


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I have yet to find the correct diagram of my wiring harness part#801066 from my 2004 Malibu Wakesetter VLX. I was wondering if anyone else has done a continuity test on this year model or part#801066 which has been discontinued from Indmar... and I can see why they discontinued it because they even don't have it diagramed correctly in their manual...Indmar_MEFI4manual.pdf...  Here are some modified diagrams that I have found with a continuity test of my own.

Showing two false wires on part#801066 harness

 

Indmar wiring MEFI4

 

Indmar 801066 wiring harness

I like the way the first diagram shows how the wiring harness should be and I have altered my harness to run the fuel pump straight from the 40amp circuit breaker to the 15amp Fuel Pump Fuse Block (#1) and then to the relay fuel switch. I also rewired the fuel relay "on/off" command wire "hot side"to come from the 10amp Fuse Block Inj/ECM (#2) as they have it in both first and second diagrams. The third diagram is how I found my unaltered wiring harness with a continuity test and had melted the MEFI Sytem Relay (R#2).

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  • 4 weeks later...

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