P018F

Fuel System Over Pressure Relief Valve Frequent Activation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Difficulty starting the engine
Power Loss

Causes

Faulty fuel pump
Clogged fuel line
Faulty fuel pressure regulator
Problems with the fuel pressure sensor
Fuel pressure sensor wiring harness fault

How to Fix

Check the pressure in the fuel system
Diagnose the fuel pump and pressure regulator
Check the condition of the fuel line for clogging
Check the fuel pressure sensor and its wiring harness
Replace faulty components

Related codes

P0190 P0191 P0192 P0193