Tracker 4x2 L4-1590cc 1.6L (1991)
EGR Electronic Vacuum Regulator Solenoid: Testing and Inspection
Chart C-7 EGR VSV Schematic
1.
Disconnect ECM connector (GRN) from ECM with ignition switch turned "OFF."
2.
Disconnect electrical connector from VSV.
3.
Disconnect vacuum hoses from EGR valve (or EGR modulator) and throttle body.
Inspecting Wire Harness
4.
Turn ignition switch "ON" and check that battery voltage is applied to connector terminal "A." If not check wire harness (LT GRN/RED) or
control relay for an open circuit.
Inspecting EGR VSV
5.
Reconnect VSV connector.
6.
With ignition switch "ON," blow into hose "A." Air should come out of hose "B" and not out of filter. If otherwise, either VSV is defective or LT
GRN/YEL wire harness is shorted to ground.
