I have a 2150 with choke issues, I have checked the sending unit to the choke from the oil pressure sending unit and I get 12v. I ran a ground wire to the choke housing and I tryed a new 12v wire to the choke and I still am having problems. I think I played around with the choke pull off too much and messed things up. I turned the choke housing about an 1/8 and tryed it both ways to see if it was too tight or hanging up, I have since moved it back to where it was originally. It used to take 1 maybe 2 trys and it would start, now it takes up to 5 trys. It starts and in 5 seconds it stalls. I'm looking for some choke adjustment instructions while it's on the car. I found some on line and tried some of the suggestions and it seems worse. When you press the pedal the plate closes all the way and when it finally starts it looks about 1/8 open, but I still never see the choke plate move until I rev the motor. When you put 12v to the choke I can watch the plate open, so I'm thinking the choke pull off is holding it back from opening while running? this is driving me crazy.........