Auto stalls while driving, restarts on it's own.

[dvmotorsports]

My buddies 88 325ic automatic will stall while driving at any speed completely at random. But then it will start right back up again without stopping and restarting the car. I haven't experienced this as I don't drive his car and those are all the details I have.

Anyone heard of this?

I was thinking intermittently bad fuel pump, but that wouldn't allow the car to refire under it's own power would it?

[jlevie]

A flaky main relay, bad CPS, or wiring fault could do this when the car is being driven.

[dvmotorsports]

I'll start with the CPS as those are easy. Anyone know if the M20 and M42 CPS are interchangeable? I have several for M42's, none for M20's.