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Efi wiring 89bb2 97explore


llface1

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Oct 27, 2015
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Vehicle Year
1989
Make / Model
Ford Bronco 2
Transmission
Automatic
I got the motor in now its time to start the wiring. Any good books or fourms i need all the help in the world
 


RonD

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Location
canada
Vehicle Year
1994
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Ford
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Manual
1997 will have sequential fuel injection, so there will be 8 wires from the computer, 1 for each cylinder's injectors.
Those are Ground wires.

Then there will be 1 Red wire that daisy chains from one fuel injector to the next.
That's the 12volt wire

So all the fuel injectors get 12volts when key is on, then computer Grounds each injector when it needs to release some fuel, which would follow the firing order.

But you should have the 1997 engine wiring harness and computer so it is pretty much plug and play for the engine stuff.

The interface to the power systems and dash will be the challenge

Some good reading here on that: http://www.therangerstation.com/tech_library/index-conversions.shtml
 
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