Intake Charge Pressure Check
CAUTION:
Do a test drive with two persons in the vehicle and where full throttle acceleration can be safely made. The front passenger should read the pressure gauge, not the driver.
- Disconnect the hose (black) from the tee-fitting joint and connect the pressure gauge to this joint. Plug the hose (black).
- Drive the vehicle with full throttle and accelerate the engine to a speed of more than 3,000 r/min at 2nd gear. Measure the intake charge pressure when the pointer is stabilized.
- Standard value: 53 - 80 kPa (7.7 - 11.6 psi)
- If the intake charge pressure is lower than the standard value, check the following items for possible cause.
- Malfunction of turbocharger wastegate actuator.
- Intake charge pressure leaks.
- Faulty turbocharger.
- If the intake charge pressure is higher than the standard value, the intake charge pressure control may be faulty. Ther fore check the following.
- Malfunction of turbocharger wastegate actuator.
- Malfunction of turbocharger wastegate regulating valve.
- Disconnected or cracked turbocharger wastegate actuator hose.