Error code
OBD2 P0093
OBD2P0093
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Fuel System Leak Detected - Large Leak.
Severity
severeDrive cautiously and seek repair immediately to avoid potential safety hazards.
Summary
P0093 indicates a large fuel system leak detected by the ECM between the mechanical pump and fuel injectors in direct injection systems.
Symptoms
- Hard starting or no starting
- Decrease in engine performance
- Marked drop in fuel economy
Common Causes
- Faulty high-pressure fuel injector
- Fuel pressure sensor malfunction
- Mechanical fault causing a leak
Diagnosis
- Check for external fuel leaks
- Inspect connectors and wire harnesses for damage or corrosion
- Verify low-pressure fuel system operation
- Perform concurrent DTC checks
Fixes
- Replace faulty high-pressure fuel injector
FAQ
Can I drive with P0093?
Drive cautiously and seek repair immediately to avoid potential safety hazards.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0005Fuel Shutoff Valve 'A' Control Circuit/Open
- P0006Fuel Shutoff Valve 'A' Control Circuit Low
- P0007Fuel Shutoff Valve 'A' Control Circuit High
- P0008Engine Position System Performance
- P0009Engine Position System Performance
- P0010'A' Camshaft Position Actuator Circuit
- P0011'A' Camshaft Position - Timing Over-Advanced or System Performance
- P0012'A' Camshaft Position - Timing Over-Retarded