Suzuki SY413 Service Manual page 3247

6E3-86 ELECTRONIC FUEL INJECTION SYSTEM (J18 ENGINE WITHOUT WU TWC)
1. Data link connector (DLC)
1. SUZUKI scan tool display
2. EGR valve opening (0: Close, 100: Full Open)
1. EGR valve
2. EGR valve coupler
EGR SYSTEM (IF EQUIPPED)
SYSTEM INSPECTION
1) Connect SUZUKI scan tool to data link connector (DLC) with
ignition switch OFF.
Special Tools
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16/14 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 or poor performance of ECT
sensor or TP sensor.
REMOVAL
1) Disconnect negative cable at battery.
2) Disconnect EGR valve coupler.
3) Remove EGR valve and gasket from intake manifold.