A/T Throttle Cable Adjustment; Idle Speed/Idle Air Control (Iac) Duty Inspection - Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual

6E2-18 ENGINE AND EMISSION CONTROL SYSTEM (H25 ENGINE)

A/T Throttle Cable Adjustment

1) Make sure that accelerator cable is adjusted as specified.
2) With throttle valve closed, check clearance "c" which should
be within following specification.
If it is out of specification, adjust it by turning cable adjusting
nut (2).
A/T throttle cable adjustment clearance
"c" : 0.8 – 1.5 mm (0.03 – 0.05 in.)
3) Tighten lock nut (3) securely.
1. A/T throttle cable
Idle Speed/Idle Air Control (IAC) Duty Inspec-
tion
1) Before idle speed/IAC duty check, make sure of the follow-
ing.
• Lead wires and hoses of engine/emission control systems
are connected securely.
• Accelerator cable is adjusted.
• Ignition timing is within specification.
• All accessories (wipers, heater, lights, A/C, etc.) are out of
service.
• Air cleaner has been properly installed and is in good condi-
tion.
• ECM (PCM) does not detect any malfunction DTC.
2) After above items are all confirmed, check idle speed and
IAC duty as follows.
NOTE:
Before starting engine, place transmission gear shift
lever in "Neutral" (shift selector lever to "P" range for A/T
vehicle), and set parking brake and block drive wheels.