EGR Boost Control Solenoid: Testing and Inspection
Simulation Test1. Carry out the "EGR Control Inspection".
- If not as specified, perform the following inspection of the EGR boost sensor solenoid valve.
Airflow 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 but the "EGR Control Inspection" is failed, inspect the vacuum hoses for improper routing, kinks or leakage, and carry out the "Circuit Open/Short Inspection".
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
- GND circuit (EGR boost sensor solenoid valve connector terminal B and PCM connector terminal 98)
- Power circuit (EGR boost sensor solenoid valve connector terminal A and main relay connector terminal D through common connector)
Short circuit
- EGR boost sensor solenoid valve connector terminal B and PCM connector terminal 98 to ground.
5. Remove the EGR valve, and inspect for any damage or clogging. Replace the EGR valve if not as specified.
6. Connect the negative battery cable.