For 1990-2009 cars only
Engine
All Component Locator
All Description and Operation
- Air Intake System Description
- Crankcase Ventilation System Description
- Electronic Ignition (EI) System Description
- Evaporative Emission Control System Operation Description
- Exhaust Gas Recirculation (EGR) System Description
- Fuel Metering System Component Description
- Fuel Supply Component Description
- Information Sensors/Switches Description
- Knock Sensor (KS) System Description
- Long Term Fuel Trim Description
- Powertrain Control Module Description
- Reduced Engine Power
- Sequential Multiport Fuel Injector Fuel System Description
- Serial Data Communications
- Short Term Fuel Trim Description
- Speed Density System Description
- Throttle Actuator Control (TAC) System Description
All Special Tools and Equipment
All Visual Identification
Cleaning, Inspection, and Adjustment
Diagnostic Procedures
- Air Conditioning (A/C) Clutch Status Circuit Diagnosis
- Alcohol/Contaminants-in-Fuel Diagnosis
- Backfire
- Cruise Control Brake Switch Diagnosis
- Cruise Control Diagnosis
- Cuts Out, Misses
- Data Link Connector Diagnosis
- Detonation/Spark Knock
- Dieseling, Run-On
- Electronic Ignition (EI) System Diagnosis
- Engine Cranks But Does Not Run
- Evaporative Emission Control System Diagnosis
- Exhaust Gas Recirculation (EGR) System Diagnosis
- Fuel Injector Circuit Diagnosis
- Fuel Injector Solenoid Coil Test
- Fuel Pump Electrical Circuit Diagnosis
- Fuel System Diagnosis
- Fuel Tank Leak Check
- Hard Start
- Heated Oxygen Sensor Heater Circuit Diagnosis
- Hesitation, Sag, Stumble
- Knock Sensor (KS) System Diagnosis
- Lack of Power, Sluggishness, or Sponginess
- Malfunction Indicator Lamp (MIL) Inoperative
- Manifold Absolute Pressure Sensor Output Check Diagnosis
- Park/Neutral Position Switch Diagnosis
- Poor Fuel Economy
- Powertrain Control Module Controlled Tachometer Diagnosis
- Powertrain On Board Diagnostic (OBD) System Check
- Reduced Engine Power Lamp Control Circuit Diagnosis
- Restricted Exhaust System Check
- Rough, Unstable, or Incorrect Idle and Stalling
- Sequential Multiport Fuel Injector Balance Test
- Starter Inhibit Relay Circuit Diagnosis
- Surges/Chuggles
- Symptoms
Diagnostic Trouble Codes
- DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
- DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
- DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
- DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
- DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
- DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
- DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
- DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
- DTC P0131 HO2S Circuit Low Voltage Bank 1 Sensor 1
- DTC P0132 HO2S Circuit High Voltage Bank 1 Sensor 1
- DTC P0134 HO2S Circuit Insufficient Activity Bank 1 Sensor 1
- DTC P0137 HO2S Circuit Low Voltage Bank 1 Sensor 2
- DTC P0138 HO2S Circuit High Voltage Bank 1 Sensor 2
- DTC P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2
- DTC P0151 HO2S Circuit Low Voltage Bank 2 Sensor 1
- DTC P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
- DTC P0154 HO2S Circuit Insufficient Activity Bank 2 Sensor 1
- DTC P0157 HO2S Circuit Low Voltage Bank 2 Sensor 2
- DTC P0158 HO2S Circuit High Voltage Bank 2 Sensor 2
- DTC P0160 HO2S Circuit Insufficient Activity Bank 2 Sensor 2
- DTC P0335 Crankshaft Position (CKP) Sensor Circuit
- DTC P0336 Crankshaft Position (CKP) Sensor Performance
- DTC P0341 Camshaft Position (CMP) Sensor Performance
- DTC P0342 Camshaft Position (CMP) Sensor Circuit Low Voltage
- DTC P0343 Camshaft Position (CMP) Sensor Circuit High Voltage
- DTC P0404 Exhaust Gas Recirculation (EGR) Open Position Performance
- DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage
- DTC P0500 Vehicle Speed Sensor (VSS) Circuit
- DTC P0506 Idle Speed Low
- DTC P0507 Idle Speed High
- DTC P0601 Control Module Read Only Memory (ROM)
- DTC P0604 Control Module Random Access Memory (RAM)
- DTC P0606 Control Module Internal Performance
- DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
- DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
- DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
- DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
- DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
- DTC P1120 Throttle Position (TP) Sensor 1 Circuit
- DTC P1125 Accelerator Pedal Position (APP) System
- DTC P1220 Throttle Position (TP) Sensor 2 Circuit
- DTC P1221 Throttle Position (TP) Sensor 1- 2 Correlation
- DTC P1275 Accelerator Pedal Position (APP) Sensor 1 Circuit
- DTC P1276 Accelerator Pedal Position (APP) Sensor 1 Performance
- DTC P1280 Accelerator Pedal Position (APP) Sensor 2 Circuit
- DTC P1281 Accelerator Pedal Position (APP) Sensor 2 Performance
- DTC P1285 Accelerator Pedal Position (APP) Sensor 3 Circuit
- DTC P1286 Accelerator Pedal Position (APP) Sensor 3 Performance
- DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance
- DTC P1514 Throttle Body Performance
- DTC P1515 Control Module Throttle Actuator Position Performance
- DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
- DTC P1517 Throttle Actuator Control (TAC) Module Performance
- DTC P1518 Throttle Actuator Control (TAC) Module Serial Data Circuit
Electrical/Electronic Schematic Diagrams
Electrical/Electronic Specifications
Gas, Vacuum and Fluids Schematics and Diagrams
Mechanical Specifications
Other Specifications
- Diagnostic Trouble Code (DTC) List
- Engine Scan Tool Data Definitions
- Engine Scan Tool Data List
- Fuel System Specifications
- GM SPO Group Numbers
Removal, Installation, and Replacement
- Accelerator Pedal Position Sensor Replacement
- Air Cleaner Assembly Replacement
- Air Cleaner Element Replacement
- Air Cleaner Outlet Front Duct Replacement
- Air Cleaner Outlet Rear Duct Replacement
- Air Cleaner Resonator Outlet Duct Replacement
- Air Conditioning (A/C) Compressor Relay Replacement
- Camshaft Position Sensor Replacement
- Crankshaft Position Sensor Replacement
- Electronic Throttle Actuator Control Module Replacement
- Engine Coolant Temperature Sensor Replacement
- Evaporative Emission Canister Purge Solenoid Valve Replacement
- Evaporative Emission Canister Replacement
- Evaporative Emission Canister Vent Replacement
- Evaporative Emission Hoses/Pipes Replacement - Canister/Fuel Tank
- Evaporative Emission Hoses/Pipes Replacement - Engine/Chassis
- Exhaust Gas Recirculation Pipe Replacement
- Exhaust Gas Recirculation Valve Replacement
- Fuel Hose/Pipes Replacement - Chassis
- Fuel Injection Fuel Rail Assembly Replacement
- Fuel Injector Replacement
- Fuel Pressure Regulator Replacement
- Fuel Pressure Relief
- Fuel Pump and Engine Oil Pressure Switch Replacement
- Fuel Pump Relay Replacement
- Fuel Pump Replacement
- Fuel Sender Assembly Replacement
- Fuel Tank Draining
- Fuel Tank Replacement
- Heated Oxygen Sensor Replacement - Bank 1
- Heated Oxygen Sensor Replacement - Bank 2
- In-Line Fuel Filter Replacement
- Intake Air Resonator Replacement
- Intake Air Temperature Sensor Replacement
- Knock Sensor Replacement
- Manifold Absolute Pressure Sensor Replacement
- Mass Airflow Sensor Replacement
- Metal Collar Quick Connect Fitting Service
- Plastic Collar Quick Connect Fitting Service
- Powertrain Control Module Replacement
- Speedometer Adapter Replacement
- Throttle Body Assembly Replacement (SFI)
