GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2008
🢒
Optra
🢒
Engine
🢒 Engine Controls and Fuel - 1.8L (L79)
Engine
All Description and Operation
Air Intake System Description
Crankcase Ventilation System Description
Electronic Ignition (EI) System Description
Engine Control Module Description
Evaporative Emission Control System Description
Exhaust Gas Recirculation (EGR) System Description
Fuel System Description
Knock Sensor (KS) System Description
All Special Tools and Equipment
Special Tools
Cleaning, Inspection, and Adjustment
Crankshaft Position System Variation Learn
Idle Learn
Spark Plug Inspection
Spark Plug Wire Inspection
Diagnostic Procedures
Alcohol/Contaminants-in-Fuel Diagnosis
Crankcase Ventilation System Inspection/Diagnosis
Diagnostic Starting Point - Engine Controls
Electronic Ignition (EI) System Diagnosis
Engine Cranks But Does Not Run
Fuel Injector Balance Test with Special Tool
Fuel Injector Solenoid Coil Test
Fuel Pump Electrical Circuit Diagnosis
Fuel System Diagnosis
Fuel Tank Leak Test
Idle Air Control (IAC) System Diagnosis
Ignition Relay Diagnosis
Malfunction Indicator Lamp (MIL) Always On
Malfunction Indicator Lamp (MIL) Inoperative
Symptoms - Engine Controls
Diagnostic Trouble Codes
DTC P0016 or P0340
DTC P0107 or P0108
DTC P0112 or P0113
DTC P0117 or P0118
DTC P0122 or P0123
DTC P0131 or P0132
DTC P0133, P1133, or P1134
DTC P0134 or P0140
DTC P0135 or P0141
DTC P0137 or P0138
DTC P0171 or P0172
DTC P0201, P0202, P0203, or P0204
DTC P0300-P0304
DTC P0315
DTC P0317
DTC P0324
DTC P0325
DTC P0327
DTC P0335 or P0336
DTC P0337
DTC P0341 or P0342
DTC P0351 or P0352
DTC P0400, P0401, P0402, or P1402
DTC P0404-P0406, P042E, or P1404
DTC P0420
DTC P0443
DTC P0502
DTC P0506 or P0507
DTC P0600-P0607, P1607, P1650, P1655, or P2610
DTC P0660
DTC P0700
DTC P1106 or P1107
DTC P1111 or P1112
DTC P1114 or P1115
DTC P1121 or P1122
DTC P1166
DTC P1167
DTC P1336
DTC P1391, P1392, or P1393
DTC P1396 or P1397
DTC P1601
DTC P2297
Intake Manifold Tuning Valve Diagnosis
Electrical/Electronic Schematic Diagrams
Engine Controls Schematics
Electrical/Electronic Specifications
Altitude Versus Barometric Pressure
Ignition System Specifications
Temperature Versus Resistance
Removal, Installation, and Replacement
Air Cleaner Assembly Replacement
Camshaft Position Sensor Replacement
Crankshaft Position Sensor Replacement
Engine Control Module Replacement
Engine Coolant Temperature Sensor Replacement
Evaporative Emission Canister Purge Solenoid Valve Replacement
Evaporative Emission Canister Replacement
Exhaust Gas Recirculation Valve Replacement
Fuel Filter Replacement
Fuel Injection Fuel Rail Assembly Replacement
Fuel Injector Replacement
Fuel Pressure Gage Installation and Removal
Fuel Pressure Relief
Fuel Pump Replacement
Fuel Sender Assembly Replacement
Fuel Tank Draining
Fuel Tank Replacement
Heated Oxygen Sensor Replacement - Sensor 1
Heated Oxygen Sensor Replacement - Sensor 2
Idle Air Control Valve Replacement
Ignition Coil Replacement
Intake Air Temperature Sensor Replacement
Intake Air Tuning Valve Vacuum Reservoir Replacement
Intake Manifold Tuning Valve Actuator Replacement
Intake Manifold Tuning Valve Actuator Solenoid Replacement
Knock Sensor Replacement
Manifold Absolute Pressure Sensor Replacement
Rough Road Sensor Replacement
Spark Plug Replacement
Spark Plug Wire Replacement
Throttle Body Assembly Replacement
Throttle Body Inspection and Cleaning
Throttle Position Sensor Replacement