My choke light has ben blinking for a while, not all the time, but usually at idle or low RPM. I know the choke light comes on when there is a problem with the alternator. The voltmeter inside reads really high, almost in the red. I thought it may be the voltage regulator. I took it to an alternator shop, they said everything was fine. I have also noticed that my lights pulsate when the car is idling. The car runs fine, but this is starting to bother me.