CRANKSHAFT POSITION SENSOR
See CRANKSHAFT POSITION SENSOR R & I under IGNITION SYSTEM.
HEATED OXYGEN SENSOR
See OXYGEN SENSOR under ENGINE SENSORS & SWITCHES.
VEHICLE SPEED SENSOR
Note. It may be necessary to consult wiring diagram to verify proper vehicle speed sensor application. See appropriate wiring diagram in WIRING DIAGRAMS article.
FUEL SYSTEM PRESSURE RELEASE
| WARNING | ALWAYS release fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components. |
- Disconnect electrical connector for electric fuel pump. See FUEL PUMP ELECTRICAL CONNECTOR LOCATION table. Electric fuel pump is located in the fuel tank. FUEL PUMP ELECTRICAL CONNECTOR LOCATION Application Connector Location 1.6L Under Cover Plate, Below Rear Seat
- Start engine and allow engine to idle until engine stalls. Turn ignition off. Disconnect negative battery cable.
- Place suitable container under fuel line connection. Cover fuel line connection with shop towel. Slowly loosen fuel line connection, allowing fuel pressure to be released. Once fuel pressure is released, fuel system components may be serviced.
FUEL PUMP
Note. For testing fuel pump operation and resistance, see SYSTEM/COMPONENT TESTS - 1.6L article.