What causes intermittent failure of my Ford E250 engine? It stopped

2001 Ford E250 Relay Diagram

E250 inertia relay stopped econoline volts checked iac What causes intermittent failure of my ford e250 engine? it stopped

What causes intermittent failure of my Ford E250 engine? It stopped

What causes intermittent failure of my Ford E250 engine? It stopped
What causes intermittent failure of my Ford E250 engine? It stopped