Fuel Pump Control System Inspection
Fuel Pump Control System Inspection1. Crank the engine and verify that fuel pump relay operation sound is heard.
- If operation sound is not heard, inspect the following:
- Fuel pump relay
- Wiring harness and connectors (Main relay-fuel pump relay-PCM terminal 104)
2. If operation sound is not heard, inspect the following:
Ignition Timing Control Inspection
1. Start the engine and run it at idle.
2. Warm up the engine to normal operating temperature
3. Connect the WDS or equivalent to the DLC-2.
4. Select the PID/DATA MONITOR AND RECORD function on the WDS or equivalent display.
5. Select the SPARKADV PID.
6. Verify that SPARKADV PID is within the specification.
Specification: BTDC 4° - 16° (10° ± 6°)
7. Increase the engine speed and verify that the SPARKADV PID value is advanced.
- If it is not advanced, inspect the following:
- CKP sensor and related harness
- MAF sensor and related harness
- CMP sensors (left and right bank) and related harness