EGR Boost Sensor: Testing and Inspection
Inspection1. Warm up the engine to normal operating temperature and let it idle.
2. Perform the intake air system inspection. Testing and Inspection
3. Measure the voltage between terminals A and B by using a voltmeter, from the rear side of the connector.
Specification: Approx. 0.8 V
4. Disconnect the vacuum hose from the EGR boost sensor.
5. Disconnect the vacuum hose from the intake manifold side of the EGR boost sensor solenoid valve and connect the vacuum hose to the EGR boost sensor.
6. Measure the voltage between terminals A and B by using a voltmeter, from the rear side of the connector.
Specification: Approx. 4 V
7. Apply vacuum or pressure to the EGR boost sensor by using a vacuum pump. Measure the voltage between terminals A and B by using a voltmeter, from the rear side of the connector.
Specification
20.0 kPa (5.91 inHg): 0.783-0.849 V
46.7 kPa (13.8 inHg): 1.772-1.912 V
101.3 kPa (30.0 inHg): 3.92-4.08 V
8. Turn off the ignition switch.
9. If not as specified, replace the EGR boost sensor.