EFI help please
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Elder User
Joined: Mar 2012
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From: Prescott AZ.
EFI help please
For those guys that put a injected Ford into their truck I need some help with one wire. the MIL wire comes from the computer to the check engine light, from there is the light hooked to a key on hot or ground? This is the last wire that I have to hook up before powering up the system.
Logistics Pro
Joined: Apr 2010
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From: Pekin, IL
ChuckRob,
I don't know what setup you have, but this might help.
Fuel Injection Technical Library » Wiring Harnesses
I don't know what setup you have, but this might help.
Fuel Injection Technical Library » Wiring Harnesses
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Elder User
Joined: Mar 2012
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From: Prescott AZ.
when you look at the diagram on OldFuelInjection.com it looks like the ECC relay powers the computer which the MIL gets it power from and so the other wire from the light or socket should go to ground. What is raising my question is the diagram that i found in a Ford Fuel Injection and EEC book that I have. It shows the light going to ignition run. I just want to make sure which is right so that I don't mess something up.
Logistics Pro
Joined: Apr 2010
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From: Pekin, IL
Hi Chuck,
I have that same book (I think). by Charles Probst?
I was a little confused after looking at too. So I had to look back on my notes and verify back and forth between that book and the old fuel injection website. The book shows factory wiring and the oldfuelinj website shows the simplified swap method (damn darksiders...
)
IGN RUN and the EEC relay are one in the same...both feed the STO/MIL/CHECK ENGINE LIGHT...that's full 12 volt positive(in ignition run). So this goes to the light as your (ignition run)positive 12 volts(+)
"from the bulb" you go to the STO plug as a ground wire(not grounded unless running a test) but this also splices off to pin 17 on the computer...pin 17 must be the ground source for the MalfunctionIndicatorLight/CheckEngine and the ground is controlled by the computer.(-) hope this helps!
I have that same book (I think). by Charles Probst?
I was a little confused after looking at too. So I had to look back on my notes and verify back and forth between that book and the old fuel injection website. The book shows factory wiring and the oldfuelinj website shows the simplified swap method (damn darksiders...
)IGN RUN and the EEC relay are one in the same...both feed the STO/MIL/CHECK ENGINE LIGHT...that's full 12 volt positive(in ignition run). So this goes to the light as your (ignition run)positive 12 volts(+)
"from the bulb" you go to the STO plug as a ground wire(not grounded unless running a test) but this also splices off to pin 17 on the computer...pin 17 must be the ground source for the MalfunctionIndicatorLight/CheckEngine and the ground is controlled by the computer.(-) hope this helps!
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Elder User
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From: Prescott AZ.
Jeff
It helps a lot. The diagram is from the Probst book. And thanks for helping me clear this up. The last time that I dieted a Ford injection harness was 12 years ago, don't have my old notes and being an old .art I can't even remember what I had for lunch yesterday. Thank again for clearing this up for me.
It helps a lot. The diagram is from the Probst book. And thanks for helping me clear this up. The last time that I dieted a Ford injection harness was 12 years ago, don't have my old notes and being an old .art I can't even remember what I had for lunch yesterday. Thank again for clearing this up for me.
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Logistics Pro
Joined: Apr 2010
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From: Pekin, IL
Jeff
It helps a lot. The diagram is from the Probst book. And thanks for helping me clear this up. The last time that I dieted a Ford injection harness was 12 years ago, don't have my old notes and being an old .art I can't even remember what I had for lunch yesterday. Thank again for clearing this up for me.
It helps a lot. The diagram is from the Probst book. And thanks for helping me clear this up. The last time that I dieted a Ford injection harness was 12 years ago, don't have my old notes and being an old .art I can't even remember what I had for lunch yesterday. Thank again for clearing this up for me.
That's okay, I have that problem sometimes myself! and I am 47.I am waiting for the results!
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Elder User
Joined: Mar 2012
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From: Prescott AZ.
No results yet, I got all the wiring done, power to the fuel pump relay and the pump cycles normally. Power to the EEC relay, the engine turns, and then got hit by a honey do. Hopefully we will get her going today after church.
Logistics Pro
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From: Pekin, IL
If I was that close to making FORD music???? No honey-do's
and church twice next Sunday
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Elder User
Joined: Mar 2012
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From: Prescott AZ.
Out of church and time to play. A few minor issues but she fired up. I might of put in a little to much cam, o well. Don't know how to post a video but here is a link, to bad you can't see the smile on my face.
https://picasaweb.google.com/chucksc...04374862875442
https://picasaweb.google.com/chucksc...04374862875442
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Elder User
Joined: Mar 2012
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From: Prescott AZ.