How To Test A Wastegate Solenoid. Our OBD tool also gives us readings for boost pressure upstream. How serious is the P0243 code.
Any help would be appreciated. The first thing to test is to make sure the solenoid is closing and sealing. Connect a suitable gauge that can read up to 1034 kPa 150 psi to the wastegate solenoid.
Stretch the Wastegate Actuator Rod Open with Your Hand While the Wastegate Actuator is In this Position Open position Then Put your thumb Over the Nipple to not Allow air to Leave the Wastegate Actuator.
Since the wastegate hose is designed to relieve pressure inside the turbocharger manifold it is constantly monitored by the vehicles ECU engine control unit. When the compressor outlet pressure increases a pneumatically powered actuator opens the turbocharger wastegate and limits the compressor outlet pressure. Since the wastegate hose is designed to relieve pressure inside the turbocharger manifold it is constantly monitored by the vehicles ECU engine control unit. A 4th vacuum line will need to be plumbed from port 3 of the wastegate solenoid valve to the intake system prior to the compressor inlet and after the air filter.
