Wastegate Solenoid: Testing and Inspection

OPERATION CHECK





1. Connect a hand vacuum pump to the solenoid valve nipple (A).
2. Use a jumper wire to connect between the solenoid valve terminal and battery terminal.





3. Connect and disconnect the jumper wire at the battery negative terminal to apply negative pressure and check tightness.






COIL RESISTANCE CHECK
Measure resistance between solenoid valve terminals.

Standard value: 36 - 44 ohms [at 20° C (68° F)]



INTAKE CHARGE PRESSURE CONTROL SYSTEM CHECK





1. After the diagnostic trouble code of MFI system is completely read, turn off the ignition switch.
2. Disconnect the hose (black) from the turbocharger waste gate solenoid and plug this hose.
3. Connect a hand vacuum pump to the turbocharger waste gate solenoid nipple to which the hose (black) was connected.





4. Use the vacuum pump to apply negative pressure, and check the negative pressure condition while the engine is stopped and while it is idling.

NOTE: If this check indicates an abnormal condition, the turbocharger waste gate solenoid is broken.