These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

Accelerator Pedal Position (APP) Sensor 2 Performance

Injection Control Pressure Out Of Range High

Engine Operating Temp Below Acceptable Range

Accelerator Pedal Position Sensor 2 Circuit Low Voltage

Excessive Injection Control Pressure

Fuel Pump Relay Control Circuit Open Or Shorted

Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Electrical

Accelerator Pedal Position Sensor 2 Circuit High Voltage

IPR Circuit Failure

Idle Select Signal Invalid

Fuel Injection Air Control Valve Circuit Electrical Malfunction

Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Signal Low

Aborted KOER ICP Failure

Fuel Injection Pump Battery Voltage Out Of Range

Fuel Injection Air Control Valve Circuit Open

Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Signal High

Accelerator Pedal Position (APP) Sensor 3 Circuit

Cylinder Head Over Temp Sensed

Fuel Injection Pump Controller Always On

Fuel Injection Air Control Valve Circuit Short To Ground

Accelerator Pedal Position (APP) Sensor 3 Performance

Fuel Pulse In Range But Lower Than Expected

Accelerator Pedal Position Sensor Supply Voltage Too High

Fuel Injection Air Control Valve Circuit Short To B+

Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Electrical

Accelerator Pedal Position Sensor 3 Circuit Low Voltage

Fuel Pulse In Range But Higher Than Expected

Fuel Injection Pump Controller Supply Voltage Low

Turbocharge Bypass Valve Open

Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal Low

Accelerator Pedal Position Sensor 3 Circuit High Voltage

Cylinder Head Temperature Sensor Out of Self-Test Range

Intake Manifold Short Runner Solenoid Circuit Open Or Shorted

Turbocharge Bypass Valve Short To B+

Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal High

Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range

Manifold Tune Valve Solenoid Circuit Open Or Shorted

Turbocharge Bypass Valve Short To Ground

Cylinder Head Temperature Sensor Signal Less Than Self-Test Range

CNG Fuel Pressure Too High

Injector High Side Short To GND Or VBATT Bank 1

No Temp Rise Seen From Fuel Heaters

Injector High Side Short To GND Or VBATT Bank 2

CNG Pressure Sensor Voltage Too High

Injector High Side Open Bank 1

CNG Pressure Sensor Voltage Too Low

Injector High Side Open Bank 2 Target Idle Not Reached

Target Idle Not Reached

Target Idle Speed Not Reached

Multi-faults Bank 1 With Low Side Shorts

Loss Of 5 Volts To TP Sensor

No 5 Volt Supply To TP Sensor

Multi-faults Bank 2 With Low Side Shorts

Loss Of 5 Volts To MAP Sensor

No 5 Volt Supply To MAP Sensor

Injector High Sides Shorted Together

ELD Circuit Low Input

No Change In MAP From Start To Run

No Charge In MAP From Start To Run

IDM Failure

Electrical Load Detector Circuit High Voltage

Lean Operation At Wide Open Throttle

Injector Driver Module Failure

Cylinder Head Temperature Sensor Detected Engine Overheating Condition

Vacuum Leak Found (IAC Fully Seated)

Ignitor Circuit

Boost Calibration Fault

Ignition Coil 1 Primary Feedback Circuit

Random Misfire

Igniter Circuit Malfunction Bank 1 Or No 1

Ignition Timing Adjustment Circuit

Igniter Circuit Malfunction No 1

Misfire Detected Fuel Level Too Low

Boost Calibration High

Cylinder 1 Misfire

Fire Due To Increased Exhaust Temperature

Boost Calibration Low

Cylinder 2 Misfire

EGR Calibration Fault

Cylinder 3 Misfire