EGR Boost Control Solenoid: Testing and Inspection
EGR BOOST SENSOR SOLENOID VALVE INSPECTIONAirflow Inspection
NOTE: Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the EGR boost sensor solenoid valve.
3. Inspect airflow between each port under the following conditions.
- If not as specified, replace the EGR boost sensor solenoid valve.
- If as specified, inspect the vacuum hoses for improper routing, kinks or leakage, and carry out the "Circuit Open/Short Inspection" and repair or replace the parts it necessary.
4. Connect the negative battery cable.
Circuit Open/Short Inspection
1. Remove the PCM.
2. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
3. Tighten the connector attaching screw.
Tightening torque
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}
4. Inspect for an open or short circuit in the following wiring harnesses by probing the applicable sensor and SST (104 Pin Breakout Box) terminals with ohmmeter leads.
Open circuit
- Power circuit (EGR boost sensor solenoid valve connector terminal A and main relay connector terminal D through common connector)
- Control circuit (EGR boost sensor solenoid valve connector terminal B and PCM connector terminal 98)
Short circuit
- Power circuit (EGR boost sensor solenoid valve connector terminal A and main relay connector terminal D through common connector to GND)
- Control circuit (EGR boost sensor solenoid valve connector terminal B and PCM connector terminal 98 to GND)
5. Install the EGR boost sensor solenoid valve.
6. Connect the negative battery cable.