Protege LX L4-1489cc 1.5L DOHC MFI (1998)
Fuel Pressure Control Solenoid: Testing and Inspection
Pressure Regulator Control Inspection
PRESSURE REGULATOR CONTROL INSPECTION
System Inspection
WARNING: Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin
and eyes. To prevent this, always complete the "Fuel Line Safety Procedures".
1. Install the fuel pressure gauge.
2. Measure the fuel pressure under the following conditions.
3. If the fuel pressure is net within the specification, carry out either Inspection 1 or Inspection 2.
Inspection 1
1. Stop the engine.
2. Connect the SSTs (NGS) to the data link connector 2.
3. Verity that diagnostic trouble code No. P1250 is not displayed. If code No. P1250 is shown, carry out troubleshooting of the code No. P1250.
4. Start the engine and run it at idle.
5. Select the SIMULATION TEST function on the NGS display.
6. Turn the PRC solenoid valve from OFF to ON by using the "PRCV" and check if the fuel pressure changes.
7. It the pressure changes, check the following PIDs.
-
ECT
-
IAT
-
TPV
8. If the pressure does not change, do as follows.
(1) Stop the engine.
(2) Turn the ignition switch to ON.
(3) Turn the PRC solenoid valve from OFF to ON by using the "PRCV" and check it the operation sound of the valve is heard.
(1) If the operation sound is heard, check the pressure regulator.
(2) It the operation sound is not heard, check the PRC solenoid valve.
Inspection 2
1. Stop the engine.
2. Connect the SSTs (NGS) to the data link connector 2.
3. Verify that diagnostic trouble code No. P1250 is not displayed. It code No. P1250 is shown, carry out troubleshooting of the code No.
4. Select the PID/DATA MONITOR AND RECORD function on the NGS display.