on my 1986 monte carlo ss the factory oil gauge stopped working. i put in a new sending unit, it is a 2 wire. done nothing. a friend told me about the electric choke on my quadrajet is tied into the oil unit. i can unplug the choke wire and it pegs wide open. does anybody have an idea what it wrong? any help is appreciated. i am a retired professional transmission rebuilder, if you have any question i will be glad to help if i can,,,,,,,,,,,,,,,,,