While poking under my hood, I noticed that the last time my carburetor was off I forgot to plug the choke heater wire in when I put it back. It's been running like that for about a year, but since I'm in a fairly warm climate it's never been a problem. I plugged it back in anyway and the first time I drove it the Oil/Choke light came on twice, for about 10-15 seconds each time. It came on when I had been on the highway and went onto an exit ramp and let up completely off the throttle. The light went off when I started pressing the accelerator again. Any ideas?