Wiring harness help
 

I am in the middle of yet another project and right now I am building a new wiring harness for my 1998 EFI Whippled 502. What I am looking for is a complete wiring diagram for the conversion of the Mefi 1 computer to the Mefi 4 computer, showing the sensors and the pin outs for the J1 and J2 connectors. Any help would be greatly appreciated and any experience would be very helpful.

Thanks

Re: Wiring harness help
 

Come on someone has got to know someone whoo has done this? :rolleyes:

Re: Wiring harness help
 

I have the pin-outs for the MEFI3. I also have a MEFI4 computer for sale.

Todd

Re: Wiring harness help
 

I wonder how different the 3 and 4 pin outs are, do you have any idea? How come you are not running the Mefi 4 computer you have?

Re: Wiring harness help
 

I have 2 MEFI3, 1 MEFI4 and 4 MEFI1 computers sitting at my desk. My engines in the boat are running the MEFI3s so the MEFI4 is just an oddball that I have. I don't think that I have anything to gain by converting my engines to the 4s so I will most likely put this unit on Ebay.

Not sure about the pin differences between the 3 and the 4.