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Theshandman
06-25-2022, 03:28 PM
The F5 Chassis Wiring Harness guide says there are three wires associated with the oil pressure sender. In fact the oil pressure sensor (included in the vintage GPS gauge set) does have three wires- black, red, white. The manual suggests if an oil temp sensor is not used (my case), the blue oil temp wire in the harness can be salvaged as the third wire in the oil pressure send. The instructions say after clipping the wires off the sender, black to black (of course), white goes to the colored sending unit wire.
What about the third (red) wire off the sending unit? I presume it attaches to the repurposed blue oil temp wire. What function does that red wire -now blue- serve back at the gauge? And where does it (the repurposed blue oil temp wire) land back in the dash / fuse box?
Art

Fordfan96
03-25-2023, 08:57 PM
The F5 Chassis Wiring Harness guide says there are three wires associated with the oil pressure sender. In fact the oil pressure sensor (included in the vintage GPS gauge set) does have three wires- black, red, white. The manual suggests if an oil temp sensor is not used (my case), the blue oil temp wire in the harness can be salvaged as the third wire in the oil pressure send. The instructions say after clipping the wires off the sender, black to black (of course), white goes to the colored sending unit wire.
What about the third (red) wire off the sending unit? I presume it attaches to the repurposed blue oil temp wire. What function does that red wire -now blue- serve back at the gauge? And where does it (the repurposed blue oil temp wire) land back in the dash / fuse box?
Art

Art,

Did you ever get this sorted out? At the moment I am up against the same issue. I’ve connected the oil sender as you and the book described. Getting no reading at gauge, no fuel reading either. What did you end up doing? Thx. -John

runamuk
03-27-2023, 05:17 AM
Are you using the FF vintage gauges ?
They are manufactured by Speedhut and come with a harness that goes from the gauge to the pressure sensor, same for coolant temp.