At first it would be die for a split second while taking off. This might happen 1 out of 5 times driving. It got a little worse and might do it half the time. Then one day while cruising about 60 MPH it quit for maybe 3 seconds then restarted and ran fine. Then one day it died completely and would not restart. After setting a while it restarted and intermittently died for that split second on the way home. Once or twice when it was cold it acted like it was not going to start but did after leaving the switch on for a few seconds. A mechanic friend of mine said he had a coil go out like that on a customers car so we tried that and it still acts the same. Fuel pump was replaced about 2 years ago with a new AC unit. I used to hear the pump run for a moment when you turned the switch on but now it does not. Another mechanic says it could the the crank trigger. We checked for codes and it give P1860 which is TCC PWM that has t do with converter lock-up but that works fine also. Any ideas???