Quote:
Originally Posted by adamj12b
Well I think I've figured it out.
You said that your contactor is switched by the microswitch on the throttle pedal. What will happen when you apply throttle with no power is the duty cycle will rise to increase current. ...
-Adam
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It is very important to get the timing correct when activating the main contactor with the throttle. As Adam says, if the controller starts outputting power before the contactor closes, you'll damage the contactor, caps, etc... It can be done - I have mine set up this way. The main contactor opens everytime I let off the accelerator.
One characteristic of incorrect timing is jerky starts. Since the car had been working before, we should be able to answer this question.
Also, here's a guy who had this problem (though, I also think he didn't have a precharge resistor) and this is a picture of his contactor contacts.
