This is the test for it.
EGR Vacuum Regulator (EVR) Solenoid
1. Turn ignition off. Disconnect EVR solenoid wiring harness connector. Measure
resistance between EVR terminals. If resistance is 26-40 ohms, EVR solenoid is
okay. If resistance is not 26-40 ohms, replace EVR solenoid.
2. Leave ignition off. Disconnect PCM 104-pin connector. Inspect for damage pins
and repair if necessary. Connect EEC-V Breakout Box (014-000950) to wiring
harness. Connect PCM to breakout box. Connect EVR solenoid to wiring harness
connector. Disconnect hose from EGR valve. Connect EGR vacuum hose to
3. Start engine and allow to idle. Connect test pin No. 47 (EVR) at breakout box to
chassis ground. If vacuum gauge reading is 4 in. Hg or more, replace PCM. If
vacuum gauge is less than 4 in. Hg, replace EVR solenoid.
Friday, April 1st, 2011 AT 11:50 PM