Fuel Cut Operation (Inspection) 6E1-45 - Suzuki 2000 Grand Vitara SQ625 Service Manual

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1. Sound scope
ENGINE AND EMISSION CONTROL SYSTEM (G16 / J20 ENGINES) 6E1-45
FUEL CUT OPERATION
Inspection
NOTE:
Before inspection, check to make sure that gear shift lever is
in Neutral position (with A/T model, selector lever in "P"
range) and that parking brake lever is pulled all the way up.
1) Warm up engine to normal operating temperature.
2) While listening to sound of injector by using sound scope or
such, increase engine speed to higher than 3,000 r/min.
3) Check to make sure that sound to indicate operation of injector
stops when throttle valve is closed instantly and it is heard again
when engine speed is reduced to less than about 2,000 r/min.