EGR VALVE INSPECTION[AJ (3.0L Duratec)]

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Voltage Inspection

1. Connect the M-MDS.

2. Disconnect the vacuum hose from the EGR valve and plug the hose.

3. Install the vacuum pump to the EGR valve.

4. Start the engine and idle it.

5. Access the following PIDs using the M-MDS.

• DPFEGR (differential pressure feedback (D.P.F.) EGR sensor output voltage), RPM (engine speed)

6. Gradually apply vacuum to the EGR valve using the vacuum pump and verify that the DPFEGR PID value is as indicated in the following table.

• If the DPFEGR PID is not as indicated in the following table, replace the EGR valve.

EGR valve characteristics standards

Vacuum applied to EGR valve	DPFEGR PID value
Approx. 5.4 kPa	Starts increasing (EGR valve starts opening)
Gradually apply vacuum	Gradually increases
27—34 kPa	2.5 V or more
Keep applying 27—34 kPa for about 10 s	Constant voltage (Voltage does not lower within several seconds)