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Idahome
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The 4.0 oil pressure switch wire is routed through this plug, it is called C139, from here it normally goes right over to the side of the engine. ON the 5.0 it is routed in with the rest of the engine wires.
You will re locate the wire from the C130 plug to the big 42 pin connector at the BACK of the intake....plug C112 I think on a ranger (c115 in 5.0 trucks).
The same 42 pin plug the rest of the truck to drivetrain wires go through.
You will find pin 26 on the V8 side is the same dark green with this oil pressure wire coming FROM the engine
cut and paste from the 02 sport trac thread:
"Next on to the oil pressure signal wire.
In a 2002 Sport trac the darg green with white (DG/W) oil pressure wire is routed through plug C139 where it then goes over to the v6 engine to the oil pressure sensor.
In a 2000 V8 Explorer the oil pressure sensor wire can be found at the C115 plug, pin 26.
So we need to remove the DG/W wire, circuit 253, from the C139 connector and run it up to the C110/115 plug and insert into pin 26. First I removed the wire with needed pin from the old donor truck harness and routed it along with our alternator batt light wire....
Here is plug C139 on the 02ST side of things, wire is cut and re routed up to the C110 plug:
Pin 26 on a 02ST is blank, so I simply had to drill a small hole, remove the red pin keeper and insert our new wire:
Its destination on the V8 side of things, pin 26 DG/W is the oil pressure sensor signal:
Now it runs right alongside the LG/R alternator to instrument cluster wire
"Ranger is similar to sport trac
I hope this helps!!
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I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks