P009C

Fuel Pressure Relief Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

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

Causes

Open or short circuit in wiring harness
Fuel pressure relief valve malfunction
Problems with the ECU
Contact corrosion

How to Fix

Check the integrity of the wiring harness
Check the resistance and operation of the fuel pressure relief valve
Check contacts for corrosion
Replace valve or wiring harness if necessary

Related codes

P009B P009D P0190