I have a good one here that has me stumped. I have a 1984 245 that I converted to LH 2.2 and EZK ignition. It has developed a stall condition that occurs at random since this past summer. The car will occasionally stumble or stall, (similar to when the igniton has been has been turned off) when one part of a lighting circuit has been turned on. The following are all cicuits that I have observed afflicting the car: Turn signals, Headlamps, Brake Lamps. Turning on the heater fan will not affect the engine.

For instance, I will start the car, let it run for a few minutes to warm up, and when I turn on the headlamps or use the turn signal to move out of the parking spot, the car will occasionally try to stall or it will stumble and keep running. When it does stall, all the warning lamps on the dash will illuminate, but the headlamps and any other lights will stay lit. The only other electrical item that will die with the engine is the radio.

Any thoughts?

Thanks,
Nick

I know nothing about conversion to LH 2.2 and EZK ignition.

It sounds like a charge problem.
- battery voltage at rest?

Just tossing some things to check at the wall.

About all I can suggest would be to check the basics. I would start with checking the grounds from the battery to the engine block.

The next thing I would check in Fuse 2, you need a good clean contact on the fuse and the holder. Cleaning the fuse block and checking the contacts is a regular check for my 86.

Then I would check the wire that goes from the + Battery Terminal to the voltage dist block over between the the head light relay and coil over on the drivers side. Near where the 25 amp fuse used to be on most 240's. The contacts on that connector block can get loose and corroded and cause all sorts of strange issues inside the car.

Last but not least is check the voltage inside the car with a meter to see what sort of voltage variation you may be seeing inside the car when the event happens.

Might just give you an direction on the issue.

Good Luck,

Paul