Drive with caution — fix soon.
This code means the exhaust pressure control valve circuit is sending an intermittent or erratic signal that drops out and returns. This usually points to a loose or corroded connector, chafed wiring, or a valve that occasionally sticks. It's commonly fixed by cleaning connections, repairing wiring, or replacing the valve once the fault is traced.
$120 – $600
Varies by vehicle and root cause.
Usually yes, since the fault is intermittent and mainly affects emissions. But intermittent problems tend to get worse, so have it traced before it becomes a constant fault, especially if you feel power dropping.
Repairs typically run $120 to $600. Cleaning a connector or fixing wiring is on the cheaper end, while replacing the valve costs more. Diagnosis time can add up since intermittent faults are harder to pin down.
It's a moderate concern. The intermittent nature means it's not usually urgent, but it can develop into a steady fault that affects emissions and warm-up, so it's worth fixing soon.
Intermittent codes usually trace to loose connectors or wiring that acts up with heat, vibration, or movement. A mechanic may need to wiggle-test the harness to catch the fault in action.