Electronic (EEGR) EGR Valve

Ensure vacuum hoses are correctly routed and in serviceable condition. Start engine and ensure there is less than 2.5 in. Hg of vacuum to EGR valve at idle (engine at normal operating temperature). Install a tachometer.
NOTE: The EVR control solenoid has a small constant vent leak. The vacuum signal to the EGR valve should be less than 1.0 in. Hg at idle.
Disconnect ISC (Air By-pass Valve) connector (1.9L SEFI engines). Disconnect and plug vacuum supply hose from EGR valve nipple. Ensure engine idle speed is within specification. Using a hand pump, slowly apply 5-10 in. Hg vacuum to EGR valve nipple.
Replace EGR valve if engine does not stall, idle speed does not drop 100 RPM (minimum) or idle speed does not return to normal when vacuum is removed.
Reconnect ISC. Reconnect EGR valve vacuum supply.