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 Modes of Operation
- Fuel Metering System Component Description
- Fuel Metering System Description
- Fuel Supply Component Description
- Information Sensors/Switches Description
- Long Term Fuel Trim Description
- Powertrain Control Module Description
- Powertrain Control Module Outputs Description
- Sequential Multiport Fuel Injector Fuel System Description
- Serial Data Communications
- Short Term Fuel Trim Description
All Special Tools and Equipment
All Visual Identification
Cleaning, Inspection, and Adjustment
- Accelerator Cable Adjustment
- Crankcase Ventilation System Inspection
- Evaporative Emission System Cleaning
- Fuel System Cleaning
- Ignition Timing Adjustment
Diagnostic Procedures
- Air Conditioning (A/C) Idle Circuit Diagnosis
- Alcohol/Contaminants-in-Fuel Diagnosis
- Backfire
- Cuts Out, Misses
- Data Link Connector Diagnosis
- Detonation/Spark Knock
- Dieseling, Run-On
- Electrical/Accessory Load Idle-Up Signal Diagnosis
- Engine Cranks But Does Not Run
- Evaporative Emission Control System Diagnosis
- Exhaust Gas Recirculation (EGR) System Diagnosis
- Fuel Injector Balance Test
- Fuel Injector Circuit Diagnosis
- Fuel Injector Solenoid Coil Test - Engine Coolant Temperature Between 10-35 Degrees C (50-95 Degrees F)
- Fuel Injector Solenoid Coil Test - Engine Coolant Temperature Outside 10-35 Degrees C (50-95 Degrees F)
- Fuel Pump Electrical Circuit Diagnosis
- Fuel System Diagnosis
- Fuel Tank Leak Check
- Hard Start
- Hesitation, Sag, Stumble
- Idle Air Control (IAC) System Diagnosis
- Intermittent Conditions
- Lack of Power, Sluggishness, or Sponginess
- Main Relay Circuit Diagnosis
- Malfunction Indicator Lamp (MIL) Always On
- Malfunction Indicator Lamp (MIL) Inoperative
- Poor Fuel Economy
- Powertrain Control Module Diagnosis
- Powertrain On Board Diagnostic (OBD) System Check
- PSP Switch Diagnosis
- Restricted Exhaust System Check
- Rough, Unstable, or Incorrect Idle and Stalling
- Surges/Chuggles
- Symptoms
Diagnostic Trouble Codes
- DTC P0101 Mass Air Flow (MAF) Sensor Performance
- DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
- DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
- DTC P0111 Intake Air Temperature (IAT) Sensor Performance
- DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
- DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
- DTC P0116 Engine Coolant Temperature (ECT) Sensor Performance
- DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
- DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
- DTC P0121 Throttle Position (TP) Sensor Performance
- DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage
- DTC P0123 Throttle Position (TP)Sensor Circuit High Voltage
- DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control
- DTC P0131 HO2S Circuit Low Voltage Sensor 1
- DTC P0132 HO2S Circuit High Voltage Sensor 1
- DTC P0133 HO2S Slow Response Sensor 1
- DTC P0134 HO2S Circuit Insufficient Activity Sensor 1
- DTC P0135 HO2S Heater Performance Sensor 1
- DTC P0136 HO2S Circuit Sensor 2
- DTC P0141 HO2S Heater Performance Sensor 2
- DTC P0171 Fuel Trim System Lean
- DTC P0172 Fuel Trim System Rich
- DTC P0300 Engine Misfire Detected
- DTC P0301 Cylinder 1 Misfire Detected
- DTC P0302 Cylinder 2 Misfire Detected
- DTC P0303 Cylinder 3 Misfire Detected
- DTC P0304 Cylinder 4 Misfire Detected
- DTC P0335 Crankshaft Position (CKP) Sensor Circuit
- DTC P0340 Camshaft Position (CMP) Sensor Circuit
- DTC P0400 EGR Flow Malfunction
- DTC P0403 Exhaust Gas Recirculation (EGR) Solenoid Control Circuit
- DTC P0420 Catalyst System Low Efficiency
- DTC P0440 Evaporative Emission (EVAP) System
- DTC P0443 EVAP System Incorrect Purge Flow
- DTC P0450 Fuel Tank Pressure Sensor Circuit
- DTC P0451 Fuel Tank Pressure Sensor Performance
- DTC P0455 Evaporative Emission (EVAP) System Leak Detected
- DTC P0461 Fuel Level Sensor Performance
- DTC P0463 Fuel Level Sensor Circuit High Voltage
- DTC P0500 Vehicle Speed Sensor (VSS) Circuit
- DTC P0505 Idle Control System
- DTC P0601 Control Module Read Only Memory (ROM)
- DTC P1408 Manifold Absolute Pressure (MAP) Sensor Circuit
- DTC P1410 Fuel Tank Pressure Control Solenoid Control Circuit
- DTC P1450 Barometric Pressure (BARO) Sensor Circuit
- DTC P1451 Barometric Pressure (BARO) Sensor Performance
- DTC P1500 Start Switch Circuit
- DTC P1510 Control Module Long Term Memory Reset
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 Control Cable Replacement
- Accelerator Pedal Replacement
- Air Cleaner Assembly Replacement
- Air Cleaner Element Replacement
- Camshaft Position Sensor Replacement
- Crankshaft Position Sensor Replacement
- Engine Coolant Temperature Sensor Replacement
- Evaporative Emission Canister Purge Solenoid Valve Replacement
- Evaporative Emission Canister Replacement
- Evaporative Emission Canister Vent Solenoid Replacement
- Evaporative Emission Tank Pressure Control Solenoid Valve Replace
- Exhaust Gas Recirculation Pipe Replacement
- Exhaust Gas Recirculation Valve Replacement
- Filler Tube Replacement
- Fuel Cut-Off Valve Replacement
- Fuel Filter Replacement
- Fuel Hose/Pipes Assembly Replacement
- Fuel Injector and Fuel Rail Replacement
- Fuel Pressure Gage Installation and Removal
- Fuel Pressure Regulator Replacement
- Fuel Pressure Relief
- Fuel Pump Relay Replacement
- Fuel Sender Assembly Replacement
- Fuel Tank Draining
- Fuel Tank Pressure Control Valve Replacement
- Fuel Tank Pressure Sensor Replacement
- Fuel Tank Replacement
- Heated Oxygen Sensor Replacement
- Idle Air Control Valve Replacement
- Ignition Coil Replacement
- Intake Air Temperature Sensor Replacement
- Main Relay Replacement
- Manifold Absolute Pressure Sensor Replacement
- Mass Airflow Sensor Replacement
- Positive Crankcase Ventilation Valve Replacement
- Powertrain Control Module Replacement/Programming
- PSP Switch Replacement
- Throttle Body Assembly Replacement
- Throttle Body Inspection and Cleaning
- Throttle Position Sensor Replacement
