Top 30 Ford OBDII Engine Codes

Evaporative Emission Control System Leak Detected Gross Leak

Fuel Injection System Too Lean Bank 1

On Board Diagnostic System Readiness Test Not Complete

Unable To Bleed Up Fuel Tank Vacuum

Catalyst System Efficiency Below Threshold Bank 1

Camshaft Position Sensor Circuit Bank 1 Sensor 1

Catalyst System Efficiency Below Threshold Bank 2

Intake Air Temperature Sensor 1 Circuit High Input

Cylinder Head Temperature Sensor Detected Engine Overheating Condition

Fuel Injection System Too Lean Bank 2

Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1

Fuel Rail Pressure Sensor Circuit Range/Performance

Exhaust Gas Recirculation Flow Insufficient Detected

DPFE Sensor Circuit High

Ignition/Distributor Engine Speed Input Circuit Malfunction

Fuel Rail Pressure Sensor Circuit High Input

Misfire Detected On Startup First 1000 Revolutions

Random Misfire Detected

Cylinder 4 Misfire Detected

EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

Transmission Control Switch Circuit is Out of Self-Test Range

Idle Air Control Overspeed Error

Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2

Theft Detected - Vehicle Immobilized

Air Conditioning Demand Out Of Self Test Range

Output Shaft Speed Sensor Circuit Malfunction

Cylinder 2 Misfire Detected

Evaporative Emission System Purge Check Valve Performance

Oxygen Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1

Cylinder 3 Misfire Detected