Fuel Pump Control
Using the signal from the crankshaft position sensor, the ECM controls operation of the fuel pump by turning its relay ON or OFF. To improve safety, the fuel pump is stopped is the engine stalls with the ignition switch ON.
FUEL PUMP SWITCH SPECIFICATION
| Ignition switch ON | Fuel pump relay | Fuel pump |
|---|---|---|
| A certain period of time after ignition switch is turned ON | ON | Operation |
| While cranking the engine | ON | Operation |
| While engine is operating | ON | Operation |
| When engine stops | OFF | Does not operate |