Operation CHARM: Car repair manuals for everyone.
Home >> Mazda >> 1996 >> Millenia V6-2255cc 2.3L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> EGR Valve Position Sensor >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

EGR Valve Position Sensor: Testing and Inspection

EGR VALVE POSITION SENSOR
Operational Inspection
1. Remove the engine control module (ECM).




2. Connect the special service tools (SST)s to the ECM.




3. Disconnect the vacuum hose from the EGR valve and connect the vacuum pump to the EGR valve.
4. Turn the ignition switch to ON.
5. Measure the voltage at the terminals as shown in the table below.




6. If not as specified, inspect the harness between EGR valve position sensor and ECM.
7. If the harnesses are OK, replace the EGR valve position sensor.

Component Inspection
1. Disconnect the EGR valve position sensor connector.
2. Disconnect the vacuum hose from the EGR valve and connect the vacuum pump to the EGR valve.
3. Use an ohmmeter to measure the resistance between the terminals as shown in the table below.







4. If not as specified, replace the EGR valve.
pro multis · About Operation CHARM