P0094High SeverityFuel System

Fuel System Leak Detected (Small Leak)

What This Means

A small fuel system leak has been detected. Fuel pressure is slowly dropping, indicating a minor leak in the high-pressure fuel system.

Common Symptoms

Slight fuel smell
Gradual performance loss
Hard starting after sitting
Check engine light on

Common Causes

Seeping fuel injector
Minor fuel line crack
Loose fuel rail connection
Worn fuel line fitting
Fuel pressure sensor gasket leak

Estimated Repair Cost

$150 – $800

Parts and labor (varies by vehicle and location)

Difficulty:Advanced

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.