5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

efi to carb wiring

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Old 08-25-2007, 05:21 PM
  #1  
sneakyD
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Default efi to carb wiring

im swapping from efi302 to carbd 351w in my '87 hatch. right now i have the kmember and complete front susp. out of car and i am in the process of stripping out everything underneath the hood i don't need and painting it.
i have already removed all the wiring going to the eec and all relays, pollution control, etc ... dealing with the efi system. now im starting on the driver side of the engine bay and i cant find a good wiring diagram of the starter solenoid. the haynes manual is unclear about the wiring for the solenoid.
thereare 6 or 7 wires going to the starter solenoid and i can't figure out what they are.

can someonelet me know what wires should remain under the hood for my efi to carb swap?
i have my dist. and alt. wires seperated.... what else should stay?
thanks in advance
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Old 08-25-2007, 05:56 PM
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LA95GT
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Default RE: efi to carb wiring

Do you want everything to work of the Key and stock controls? If not you can just hard wire everything to rocker and toggle switches
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Old 08-25-2007, 05:58 PM
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sneakyD
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Default RE: efi to carb wiring

i still want to use the stock turn key ignition, but gauges will all be mechanical aftermarket. fuel pump will end up being wired to a toggle b/c im pretty sure the fuel pump is powered by the eec.
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Old 08-26-2007, 08:40 AM
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LA95GT
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Default RE: efi to carb wiring

as long as you find a 12-volt wire thats hot with the ignition it`ll work off the key.
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Old 08-26-2007, 11:53 AM
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sneakyD
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Default RE: efi to carb wiring

i gotcha.

i still want to know what all the wires going to the starter solenoid are (there is 6 or 7). it's an '87 and the haynes manual doesnt have that many wires going to it. thanks
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Old 08-26-2007, 02:20 PM
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lookin4astang
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Default RE: efi to carb wiring

http://jason.fletcher.net/tech/efi-carb/efi-carb.htm

If you can't do it with this, I'd let someone else handle it. It include's everything you'll need. I'll give youa couplemore if you want to retain most of your stock wiring and reuse it. It can be done easily. Doesn't take much to run a carbed engine at all.

http://www.freewebs.com/vristang/fox351wswapfaq.htm
http://www.veryuseful.com/mustang/tech/engine/
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Old 08-26-2007, 02:22 PM
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Default RE: efi to carb wiring

The wiring to the solenoid should be the distributor and coil, (for me electric fan as well). Also, the power from the alternator comes into this first as well and your starter.
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Old 08-26-2007, 03:25 PM
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Default RE: efi to carb wiring

got it

much appreciated
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