Car goes dead while driving but starts back up

[jeffgrice]

Hey Gang,

Need some pointers on what possibly could be causing this problem and where to start looking.

I have a SPF Daytona Coupe with Roush 427sr and Mass-Flo Throttle Body FI (fox based ecu).

On the way home from a long flawless drive yesterday the motor died 4 times in about 10 miles. All about the same interval from each event.

Here's what would happen:

• While driving the motor would die in an instant.
• The tach plumeted immediately
• No coughing...dead
• All electrical was still functioning

Each time I would hit the starter and the motor would fire back up. I would say it took more cranks than usual and stumbled upon start.

BUT ...

Then would run fine for a few miles until it happened again.

When I got home I started/stopped the car a bunch of times each of which it started fine.

Here's what I have checked:

• I can hear the electric fuel pump
• The fuel pressure regulator shows the set pressure
• No codes thrown from the ECU
• While running I fiddled with the key to see if vibration would kill the motor - nope

Any thoughts on what this could be and what to check?

Thanks in advance!

Jeff