Turbocharger Pressurization Test
INTAKE CHARGE PRESSURE CHECKCAUTION
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.
1. Disconnect the hose (black) from the tee4ifting joint and connect the pressure gauge to this joint. Plug the hose (black).
2. Drive the vehicle with full throttle and accelerate the engine to a speed of more than 3,000 rlmin at 2nd gear. Measure the supercharging pressure when the pointer is stabilized.
Standard value: 53 - 80 kPa (7.7 - 11.6 psi)
3. 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.
4. 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 wasteg ate regulating valve.
^ Disconnected or cracked turbocharger wastegate actuator hose.