I wired up my electric choke like in the attached diagram. Now my oil pressure light is constantly on (key on or off). Using a Rebel Wire kit. Any ideas why this might be happening?
Back in 1962, my first car was a '57 Chevy and the oil light stayed on. Being 16, I removed the bulb and drove the snot out of the car for another 2 years!
you have it hooked direct to the battery. it will go out in a couple of days when your battery dies. does your choke ever close?
the choke is probably not getting power if that oil light switch doesn't sense oil pressure. that is, if it is, the right sender and is wired correctly.
It needs to go to switched power, not to the battery. Does it go off if you start the engine? I noticed they didn't tell you which terminal to connect the wires to, they are marked S I P S connects to P when there is no oil pressure. I connects to P when there is oil pressure.
I'm going to go out there and check everything again and report back. Interesting about the SIP, I may have reversed the S and P terminals somehow.
GM used several switches and senders, some are a switch and sender, some are a switch or sender only.
Ok, I reversed S and P and the light is off now. The idea was not to use a simple switched source like the wipers to run the electric choke but to wait for oil pressure to trigger the choke. The switch is a Standard # PS64 switch that I picked up new.
That switch was originally used to run an electric fuel pump....same principle applies. Pump shuts off if engine is not running, key is left on. But it also runs the pump when cranking, so it gets fuel to start. S - Starter I - Ignition P - Pump
An interesting way of wiring an oil pressure light, and the electric choke. Most of the oil lights were wired to ignition and then to the pressure switch, so the pressure switch grounded the oil light with little or no pressure, which is opposite to what this method does.
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