P047F

Exhaust Pressure Control Valve A Stuck Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased fuel consumption
Reduced engine power
Unstable operation at idle
Check Engine light comes on

Causes

Valve stuck due to contamination or corrosion
Malfunction of the solenoid valve (solenoid)
Wiring harness damage
Problems with vacuum supply

How to Fix

Check the pressure control valve for contamination and sticking
Check the operation of the solenoid valve (solenoid)
Inspect the wiring harness for damage
Replace faulty valve or solenoid
Clean or replace valve if necessary

Related codes

P0401 P0402 P0470