GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2008
🢒
Optra
🢒
Engine
🢒 Engine Controls and Fuel - 2.0L (L34 GMDAT)
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
Throttle Actuator Control (TAC) System Description
All Special Tools and Equipment
Special Tools
Cleaning, Inspection, and Adjustment
Crankshaft Position System Variation Learn
Fuel System Cleaning
Idle Learn
Spark Plug Inspection
Spark Plug Wire Inspection
Diagnostic Procedures
Alcohol/Contaminants-in-Fuel 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
Symptoms - Engine Controls
Diagnostic Trouble Codes
DTC P0016 or P0340
DTC P0031, P0032, P0037, or P0038
DTC P0068
DTC P0106
DTC P0107 or P0108
DTC P0110 or P0111
DTC P0112 or P0113
DTC P0115
DTC P0116
DTC P0117 or P0118
DTC P0122 or P0123
DTC P0122, P0123, P0222, P0223, or P2135
DTC P0125 or P0128
DTC P0131, P0132, P0134, P0137, P0138, or P0140
DTC P0133 or P0139
DTC P0135 or P0141
DTC P0171, P0172, P2187, or P2188
DTC P0201, P0202, P0203, or P0204
DTC P0217
DTC P0261, P0262, P0264, P0265, P0267, P0268, P0270, or P0271
DTC P0300-P0304
DTC P0314
DTC P0315
DTC P0317
DTC P0324
DTC P0325
DTC P0327
DTC P0335, P0336, or P0337
DTC P0341 or P0342
DTC P0351 or P0352
DTC P0400, P0401, P0402, or P1402
DTC P0403, P0404, P0405, P0406, or P042E
DTC P0420
DTC P0442 or P0456
DTC P0443
DTC P0446
DTC P0449
DTC P0451 or P0454
DTC P0452 or P0453
DTC P0455
DTC P0458 or P0459
DTC P0488
DTC P0496
DTC P0498 or P0499
DTC P0502
DTC P0506 or P0507
DTC P050B
DTC P050D
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610
DTC P061B or P161B
DTC P0630
DTC P0641 or P0651
DTC P0650
DTC P0685
DTC P0700
DTC P1106 or P1107
DTC P1111 or P1112
DTC P1114 or P1115
DTC P1121 or P1122
DTC P1137 or P1166
DTC P1138 or P2297
DTC P1391, P1392, or P1393
DTC P1396 or P1397
DTC P1516, P2101, or P2119
DTC P2096 or P2097
DTC P2104, P2105, P2106, or P2110
DTC P2122, P2123, P2127, P2128, or P2138
DTC P2195
DTC P2196
DTC P2279
DTC P2282
DTC P2A01
Electrical/Electronic Schematic Diagrams
Engine Controls Schematics
Electrical/Electronic Specifications
Altitude Versus Barometric Pressure
Ignition System Specifications
Temperature Versus Resistance
Removal, Installation, and Replacement
Accelerator Pedal Position Sensor 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
Evaporative Emission System Hoses/Pipes Replacement
Exhaust Gas Recirculation Valve Adapter Pipe 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 Pressure Sensor Replacement
Fuel Tank Replacement
Heated Oxygen Sensor Replacement - Sensor 1
Heated Oxygen Sensor Replacement - Sensor 2
Ignition Coil Replacement
Intake Air Temperature Sensor 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