For 1990-2009 cars only
Engine
All Component Locator
All Description and Operation
- Air Intake System Description
- Crankcase Ventilation System Description
- Distributor Ignition (DI) System Description
- Engine Control Module Description
- Evaporative Emission Control System Operation Description
- Exhaust Gas Recirculation (EGR) System Description
- Fuel Metering Modes of Operation
- Fuel Metering System Component Description
- Fuel Supply Component Description
- Fuel System Description
- Information Sensors/Switches Description
- Knock Sensor (KS) System Description
All Special Tools and Equipment
All Visual Identification
Cleaning, Inspection, and Adjustment
Diagnostic Procedures
- Air Conditioning (A/C) Signal Diagnosis
- Air Intake System Diagnosis
- Alcohol/Contaminants-in-Fuel Diagnosis
- Backfire
- Controlled Idle Speed Check
- Crank Signal Circuit Diagnosis
- Crankcase Ventilation System Diagnosis
- Cuts Out, Misses
- Detonation/Spark Knock
- Dieseling, Run-On
- Distributor Ignition (DI) System Check
- Distributor Ignition (DI) System Diagnosis
- Engine Cranks But Does Not Run
- Evaporative Emission Control System Diagnosis
- Excessive Exhaust Emissions or Odors
- Exhaust Gas Recirculation (EGR) System Check
- Exhaust Gas Recirculation (EGR) System Diagnosis
- Fuel Metering System Diagnosis
- Fuel Pump Electrical Circuit Diagnosis
- Fuel System Diagnosis
- Fuel System Pressure Test
- Fuel Tank Leak Check
- Hard Start
- Hesitation, Sag, Stumble
- Idle Air Control (IAC) System Diagnosis
- Injector Circuit Diagnosis
- Intermittent Conditions
- Knock Sensor (KS) System Check
- Knock Sensor (KS) System Diagnosis
- Lack of Power, Sluggishness, or Sponginess
- Malfunction Indicator Lamp (MIL) Inoperative
- Manifold Absolute Pressure Sensor Output Check Diagnosis
- Neutral Switch Diagnosis - Automatic Transmission Only
- No Scan Data/Will Not Flash DTC 12; MIL On Steady
- Poor Fuel Economy
- Poor Fuel Fill Quality
- Powertrain On Board Diagnostic (OBD) System Check
- Restricted Exhaust System Check
- Rough, Unstable, or Incorrect Idle and Stalling
- Surges/Chuggles
- Symptoms
Diagnostic Trouble Codes
- DTC 13 Oxygen Sensor Circuit
- DTC 14 ECT Sensor Circuit Low
- DTC 15 ECT Sensor Circuit High
- DTC 21 TP Sensor Circuit High
- DTC 22 TP Sensor Circuit Low
- DTC 24 VSS Circuit Low
- DTC 31 Governor (Engine Speed)
- DTC 32 Exhaust Gas Recirculation (EGR) Error
- DTC 33 MAP Sensor Circuit High Voltage
- DTC 34 MAP Sensor Circuit Low Voltage
- DTC 42 Ignition Control Error
- DTC 43 Knock Sensor Circuit Error
- DTC 44 Lean Exhaust Indicated
- DTC 45 Rich Exhaust Indicated
- DTC 51 PROM Error
- DTC 52 PROM (CAL-PAK) Missing
- DTC 54 Fuel Pump Relay Circuit Error
- DTC 55 ECM Error
Electrical/Electronic Schematic Diagrams
Electrical/Electronic Specifications
Gas, Vacuum and Fluids Schematics and Diagrams
General Diagnostic Information
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 Controls Replacement
- Accelerator Pedal Replacement
- Air Cleaner and Extension Replacement
- Air Cleaner Element Replacement
- Air Intake System Replacement
- Crankcase Ventilation Valve Replacement
- Engine Control Module Replacement
- Engine Coolant Temperature Sensor Replacement
- Engine Speed Governor Module Replacement
- Evaporative Emission Canister Filter Replacement
- Evaporative Emission Canister Replacement
- Evaporative Emission System Hoses/Pipes Replacement
- EVRV Solenoid Replacement
- Exhaust Gas Recirculation (EGR) System Hoses Replacement
- Exhaust Gas Recirculation Filter Cleaning/Replacement
- Exhaust Gas Recirculation Valve Replacement
- Fuel Feed and Fuel Return Pipe Assembly Replace
- Fuel Hose/Pipes Assembly Replacement
- Fuel Injector Replacement
- Fuel Meter Body Assembly Replacement
- Fuel Pressure Regulator Replacement
- Fuel Pressure Relief
- Fuel Pump and Engine Oil Pressure Switch Replacement
- Fuel Pump Relay Replacement
- Fuel Pump Replacement
- Fuel Pump Strainer Replacement
- Fuel Tank Draining
- Fuel Tank Replacement
- Fuel Vapor Pipe Assembly Replacement
- Governor Drive Motor Replacement
- Governor Lubrication
- Governor Throttle Drive Assembly Replacement
- Heat Tube Replacement
- Idle Air Control Valve Replacement
- In-Line Fuel Filter Replacement
- Knock Sensor Module Replacement
- Knock Sensor Replacement
- Manifold Absolute Pressure Sensor Replacement
- Metal Collar Quick Connect Fitting Service
- Minimum Idle Speed Check
- Oxygen Sensor Replacement
- Plastic Collar Quick Connect Fitting Service
- PROM Replacement
- Throttle Body Assembly Replacement
- Throttle Body Injection (TBI) Unit Replacement
- Throttle Position Sensor Replacement
- Vehicle Speed Sensor Buffer Module Replacement
