My 96 Camry starts first time every time then stalls after 10-20 seconds? Last year it ran fine but rarely would stall @ running speed. I had to set for 2-3min before it would start then it ran fine. If I tried to start it immediately it started then stalled within 2-5 seconds. Ran for months without issue now won't stay started @ all. Local mechanic replaced throttle position sensor (with used one) and the igniter? Checked fuel pump, OK!