P0093
PowertrainFuel Systemcritical severityFuel System Leak Detected - Large Leak
What P0093 Means
The PCM detected a large fuel system leak based on fuel pressure drop rate.
Symptoms
- Check Engine Light
- Fuel smell
- Visible fuel leak
- Loss of power
- Hard starting
Common Causes
- Cracked fuel line
- Damaged fuel rail
- Leaking injector seal
- Fuel pump seal failure
Diagnostic Steps
- Visually inspect for fuel leaks
- Perform fuel pressure drop test
- Check all fuel connections
- Inspect injector seals
Where to start: Immediately locate and repair fuel leak. Fire hazard.
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