from efi to carb ....engine wireing harness
does merc make a harness that you can buy to go from a 502 mag .. or 500 efi ... to a carb motor or do you just make your own
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i would still like to be able to unplug at oem connector
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Are you talking about the boat harness or the engine harness?
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Im talking about the engine harness i want it to look clean on the install and im making a parts list
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harness you have can be used . The upper half
Is the efi side there is 1 plug separating the 2 I've done it many times |
so the harness for the injectors is its own harness which is apart from the main harness
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i changed out mine frow
m efi to a carb set-up.my motor was a 94 mercuser,502mag,efi to a 502 carb set-up.i got a new harness from a local dealer.i used for refrance a 89-92 carb wireing harness.this was about110.00.i also changed the distributor to a msd and use a marine box.that was it.there was some minor wiring,but nothing major.everybody told me i was going to take big hit in fuel consuption....i lost something like .5gallon a mile,,,,,,,,a small price to pay for being able to have a boat that i can work on/trouble shoot.i am a old school kinda guy and dont know alot about efi. |
Just change 2 on my boat part # 84861240A2 the cost about $200 each....
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the EFI harness is seperate....just disconnect in the black ecm box and you are good to go....
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I'm in the process of going from efi mag 502 to a carbed set so I'm interested in the break down of what needs to be done.
I was under the impression that I need new wiring harness for a carb application,new distributor and carb module. Am I close with this or way off base. I would love to here what exactly I need to do from those who have done this conversion. Thanks |
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