With Automatic Transaxle
SYSTEM INSPECTIONWARNING: 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 Pressure Release Procedures".
1. Install the fuel pressure gauge.
2. Measure the fuel pressure under the following conditions.
3. If the fuel pressure is not within the specification, carry out either Inspection 1 or Inspection 2 as required.
INSPECTION 1
1. Stop the engine
2. Connect the Special Service Tools (SST)s New Generation Star (NGS) tester to the data link connector-2.
3. Start the engine and run it at idle.
4. Select the "SIMULATION TEST" function on the NGS display.
a. Turn the PRC solenoid valve from ON to OFF by using the "SIMULATION TEST" function and check if the fuel pressure changes.
b. If the pressure changes, check the following.
^ PCM terminal voltage
^ Engine coolant temperature signal
^ Intake air temperature signal
^ Throttle valve TVO signal
c. If the pressure does not change, do as follows.
I. Stop the engine.
II. Turn the ignition switch to ON.
III. Turn the PRC solenoid valve from ON to OFF by using the "SIMULATION TEST" function and check if the operation sound of the valve is heard.
a. If the operation sound is heard, check the following.
^ Pressure regulator
b. If the operation sound is not heard, check the following.
^ PRC solenoid valve
^ Wiring between PRC solenoid valve and PCM terminal 19
INSPECTION 2
1. Stop the engine.
2. Install the SSTs (NGS) to the data link connector-2.
3. Turn the ignition switch to ON.
4. Select the "PID/DATA MONITOR AND RECORD" function on the NGS display.
5. Select the pressure regulator solenoid valve and verify that the PRC solenoid valve is ON.
6. If the PRC solenoid valve is OFF, check the following. PCM terminal voltage
- Engine coolant temperature signal
- Intake air temperature signal
7. Select the "SIMULATION TEST" function on the NGS display.
8. Turn the PRC solenoid valve from ON to OFF by using the "SIMULATION TEST" function and check if the operation sound of the valve is heard.
a. If the operation sound is heard, check the following.
^ Loose or damaged vacuum hose between the pressure regulator, PRO solenoid valve, and intake manifold
b. If the operation sound is not heard, check the following.
^ PRC solenoid valve
^ Wiring between PRC solenoid valve and PCM terminal 19