EFI to Carb Wiring
11-17-2018, 12:20 PM
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EFI to Carb Wiring
Apologize if this topic has been beaten to death previously.
Getting ready to remove a 502mpi from the boat and replace with a carbed 555. Will any of the current wiring harness work ? Or will a separate harness be needed with the conversion from efi to carb ?
Getting ready to remove a 502mpi from the boat and replace with a carbed 555. Will any of the current wiring harness work ? Or will a separate harness be needed with the conversion from efi to carb ?
11-17-2018, 12:56 PM
#2
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You’ll just have a bunch of wires and plugs left over. It works but just unsightly. I made a bracket to mount the gizmos to the back of the engine from port side header but had a lot of left over wire that needed shortened and at that point I wish that I just gotten a carb harness from CP.
https://www.cpperformance.com/p-1323...e-harness.aspx
All you need is the water temp, oil pressure, choke, and whatever else you want to add. The ignition wire wasn’t large enough to supply my DUI ignition so I ran that wire to a relay for a heavy
gauge wire.
https://www.cpperformance.com/p-1323...e-harness.aspx
All you need is the water temp, oil pressure, choke, and whatever else you want to add. The ignition wire wasn’t large enough to supply my DUI ignition so I ran that wire to a relay for a heavy
gauge wire.
11-17-2018, 03:41 PM
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Agree, can use it, and disconnect the EFI part from the engine harness, or get one of these and make a custom install, sell the harness you have on the swap shop maybe
https://www.michiganmotorz.com/custo...ss-p-4508.html
https://www.michiganmotorz.com/custo...ss-p-4508.html
11-18-2018, 10:50 AM
#6
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Agree, can use it, and disconnect the EFI part from the engine harness, or get one of these and make a custom install, sell the harness you have on the swap shop maybe
custom-mercruiser-style-engine-harness-p-4508.html
custom-mercruiser-style-engine-harness-p-4508.html
