For 1990-2009 cars only
Engine
All Component Locator
All Description and Operation
- Accelerator Pedal Position Module Description
- Air Intake System Description
- Crankcase Ventilation System Description
- Fuel Supply Component Description
- Fuel System Description
- Glow Plug System Description
- Information Sensors/Switches Description
- Powertrain Control Module Description
- Serial Data Communications
All Special Tools and Equipment
All Visual Identification
Cleaning, Inspection, and Adjustment
- Fuel Feed Pipe and Return Pipe Purging
- Fuel Injection Pump Timing Adjustment
- Fuel Injection Pump Top Dead Center Offset Adjustment
- Fuel System Cleaning
Diagnostic Procedures
- Air Conditioning (A/C) Request Circuit Diagnosis
- CDR Valve Test
- Contamination Testing
- Cruise Control Diagnosis
- Cuts Out, Misses
- Data Link Connector Diagnosis
- Engine Cranks But Does Not Run
- Engine Protection System Circuit Diagnosis
- Excessive Smoke
- Fuel Heater Diagnosis
- Fuel Injection System Diagnosis
- Fuel Knock/Combustion Noise
- Fuel Manager/Filter Diagnosis
- Fuel Pump Electrical Circuit Diagnosis
- Fuel Return System Diagnosis
- Fuel Sender Diagnosis
- Fuel Supply System Check
- Fuel System Diagnosis
- Fuel Tank Leak Check
- Glow Plug System Check
- Hard Start
- Hesitation, Sag, Stumble
- Injection Nozzle(s) Diagnosis
- Intermittent Conditions
- Lack of Power, Sluggishness, or Sponginess
- Malfunction Indicator Lamp (MIL) Inoperative
- Poor Fuel Economy
- Powertrain On Board Diagnostic (OBD) System Check
- Restricted Exhaust System Check
- Surges/Chuggles
- Symptoms
- Water-in-Fuel Lamp Diagnosis
Diagnostic Trouble Codes
- 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 P0121 Accelerator Pedal Position (APP) Sensor 1 Circuit Performance
- DTC P0122 Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage
- DTC P0123 Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage
- DTC P0126 Engine Coolant Temperature (ECT) Insufficient for Stable Operation
- DTC P0182 Fuel Temperature Sensor Circuit Low Voltage
- DTC P0183 Fuel Temperature Sensor Circuit High Voltage
- DTC P0215 Engine Shutoff (ESO) Solenoid Control Circuit
- DTC P0216 Injection Timing Control Circuit
- DTC P0219 Engine Overspeed
- DTC P0220 Accelerator Pedal Position (APP) Sensor 2 Circuit
- DTC P0221 Accelerator Pedal Position (APP) Sensor 2 Circuit Performance
- DTC P0222 Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage
- DTC P0223 Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage
- DTC P0225 Accelerator Pedal Position (APP) Sensor 3 Circuit
- DTC P0226 Accelerator Pedal Position (APP) Sensor 3 Circuit Performance
- DTC P0227 Accelerator Pedal Position (APP) Sensor 3 Circuit Low Voltage
- DTC P0228 Accelerator Pedal Position (APP) Sensor 3 Circuit High Voltage
- DTC P0231 Fuel Pump Feedback Circuit Low Voltage
- DTC P0236 Turbocharger Boost System Performance
- DTC P0237 Turbocharger Boost Sensor Circuit Low Voltage
- DTC P0238 Turbocharger Boost Sensor Circuit High Voltage
- DTC P0251 Injection Pump Cam Sensor Circuit
- DTC P0263 Cylinder 1 Balance System
- DTC P0266 Cylinder 2 Balance System
- DTC P0269 Cylinder 3 Balance System
- DTC P0272 Cylinder 4 Balance System
- DTC P0275 Cylinder 5 Balance System
- DTC P0278 Cylinder 6 Balance System
- DTC P0281 Cylinder 7 Balance System
- DTC P0284 Cylinder 8 Balance System
- 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 P0305 Cylinder 5 Misfire Detected
- DTC P0306 Cylinder 6 Misfire Detected
- DTC P0307 Cylinder 7 Misfire Detected
- DTC P0308 Cylinder 8 Misfire Detected
- DTC P0335 Crankshaft Position (CKP) Sensor Circuit
- DTC P0370 Timing Reference High Resolution System Performance
- DTC P0380 Glow Plug Feedback Circuit
- DTC P0501 Vehicle Speed Sensor (VSS) Performance
- DTC P0567 Cruise Control Resume Switch Circuit
- DTC P0568 Cruise Control Set Switch Circuit
- DTC P0571 Cruise Control Brake Switch Circuit
- DTC P0601 Control Module Read Only Memory (ROM)
- DTC P0602 Control Module Not Programmed
- DTC P0604 Control Module Random Access Memory (RAM)
- DTC P0606 Control Module Internal Performance
- DTC P1125 Accelerator Pedal Position (APP) System
- DTC P1214 Injection Pump Timing Offset
- DTC P1216 Fuel Solenoid Response Time Too Short
- DTC P1217 Fuel Solenoid Response Time Too Long
- DTC P1218 Injection Pump Calibration Circuit
- DTC P1621 Control Module Long Term Memory Performance
- DTC P1626 Theft Deterrent Fuel Enable Signal Lost
- DTC P1627 Control Module Analog to Digital Performance
- DTC P1630 Theft Deterrent Learn Mode Active
- DTC P1631 Theft Deterrent Start Enable Signal Not Correct
- DTC P1635 5 Volt Reference Circuit
- DTC P1641 Malfunction Indicator Lamp (MIL) Control Circuit
- DTC P1643 Wait to Start Lamp Control Circuit
- DTC P1654 Service Throttle Soon Lamp Control Circuit
- DTC P1656 Wastegate Solenoid Control 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 Module Replacement
- Air Cleaner Assembly Replacement
- Air Cleaner Element Replacement
- Boost Sensor Replacement
- CDR Valve and Hoses Replacement
- Crankshaft Position Sensor Replacement
- Damaged Glow Plug Removal
- Engine Coolant Temperature Sensor Replacement
- Engine Oil Pressure Sensor and/or Switch Replacement
- Engine Protection System Temperature Switch Replacement
- Engine Shutdown Solenoid Replacement
- Fuel Filter Element Replacement
- Fuel Heater Replacement
- Fuel Hose/Pipes Assembly Replacement
- Fuel Injection Line Replacement
- Fuel Injection Pump Replacement
- Fuel Lift Pump Replacement
- Fuel Manager/Filter Replacement
- Fuel Manager/Filter Water Draining
- Fuel Pump and Engine Oil Pressure Indicator Switch Replacement
- Fuel Pump Relay Replacement
- Fuel Sender Assembly Replacement
- Fuel Solenoid Driver Replacement
- Fuel Tank Draining
- Fuel Tank Replacement
- Glow Plug Relay Replacement
- Glow Plug Replacement - Left Side
- Glow Plug Replacement - Right Side
- Injection Nozzle Replacement
- Intake Air Temperature Sensor Replacement
- Password Learn
- Plastic Collar Quick Connect Fitting Service
- Powertrain Control Module Replacement/Programming
- Wastegate Actuator Replacement
- Wastegate Solenoid Replacement
- Water in Fuel Indicator Sensor Replacement
