I can not find the wires labeled MIL on the schematic. Is it a light indicator? It has an IGN SW wire in loom with it.
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I can not find the wires labeled MIL on the schematic. Is it a light indicator? It has an IGN SW wire in loom with it.
Are you installing a Coyote engine? If so, the MIL is the Malfunction Indicator Light. This thread may help: https://thefactoryfiveforum.com/show...ur-MIL-Working
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The MIL (and the OBDII socket) come with the engine wiring harness from Ford Performance - along with the computer and engine bay fusebox. It's not a part of the Ron Francis harness.
John D. - Minneapolis 'Burbs
1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5
2018 Mk4 Roadster w/ Coyote - #9365 - Build Thread Delivery 7/3/18, 1st Start 1/4/19, 1st Road Mile 5/5/19, Legal 6/18/19, In Paint 2/25/21, Done (?) 4/2021
60's kid, I'll be checking out the MIL on my LS3 very soon. Will update that on my LS3 tach post.
Mine works.
If you have the GM tranny and engine ECM there is a bulkhead 12 pin connector that connects both together. The "B" pin has a brown/white wire that is the one to use for the dash mounted MIL light.
If your using an LED you'll need a resistor in series with the LED, I used a 1K ohm.
33 Hot Rod (Gen 1) Stage 1 delivered on 4/27/2017, Stage 2 delivered on 9/21/2018
LS3 495hp/480 lb. ft., 4L70E, Electric PS, Classic Auto Air, Lokar electronic sport shifter, 13 inch Wilwood front and 11.68 Cobra rear brakes, Ford 8.8 w 3.73 w 4 link, Billet Specialty Legend Series MAG wheels and Mickey Thompson
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