ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-1
6-1
10
10A
10B
SECTION 6-1
ENGINE GENERAL INFORMATION AND
DIAGNOSIS (H25 ENGINE)
ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) ................................................... 6-1-1
ENGINE MECHANICAL ............................................................................................................................ 6A2-1
ENGINE COOLING......................................................................................................................................6B-1
ENGINE FUEL .............................................................................................................................................6C-1
ENGINE AND EMISSION CONTROL SYSTEM ....................................................................................... 6E2-1
ENGINE IGNITION SYSTEM..................................................................................................................... 6F2-1
CRANKING SYSTEM..................................................................................................................................6G-1
CHARGING SYSTEM.................................................................................................................................. 6H-1
EXHAUST SYSTEM .................................................................................................................................... 6K-1
CONTENTS
General Information ....................................... 6-1-4
Statement of Cleanliness and Care ............. 6-1-4
General Information on Engine Service ....... 6-1-5
Precaution on Fuel System Service ............. 6-1-6
Fuel pressure relief procedure .................6-1-7
Fuel leakage check procedure ................. 6-1-7
Engine Diagnosis........................................... 6-1-8
General Description ..................................... 6-1-8
On-Board Diagnostic System (Vehicle
without Diagnosis Connector) ...................... 6-1-8
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System :
• Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
• Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
Whether following systems (parts) are used in the particular vehicle or not depends on specifications.
Be sure to bear this in mind when performing service work.
• Diagnosis connector
• CKP sensor
• MAP sensor
• EGR valve
• Heated oxygen sensor or CO adjusting resistor
• Three way catalytic converter, Warm-up three way catalytic converter
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