Exhaust Gas Recirculation: Testing and Inspection
EGR SYSTEMSystem Inspection [Using SUZUKI scan tool (Tech 1)
1. Connect Tech 1 to data link connector (DLC) with ignition switch OFF.
Special tool
(A):SUZUKI scan tool, Tech I
(B): Mas8 storage cartridge
(C):14116 pin DLC cable
NOTE: For operation procedure of cartridge, refer to its cartridge operator's manual.
2. Start engine and warm up it to normal operating temperature.
3. With engine idling (without depressing accelerator pedal), open EGR valve by using "MISC. TEST" mode.
In this state, according as EGR valve opening increases engine idle speed drops. If not, possible cause is clogged EGR gas passage, stuck or faulty EGR valve.