Drive with caution — fix soon.
This code means the engine computer detected a general malfunction in the exhaust pressure control valve circuit, which regulates exhaust backpressure for emissions and engine warm-up. It often points to a stuck or failing valve, wiring problems, or a clogged pressure sensor line. It's usually fixable by cleaning or replacing the valve or repairing the connector, without major engine work.
$150 – $600
Varies by vehicle and root cause.
For short trips, usually yes, but you shouldn't ignore it. The valve affects emissions and warm-up, and on diesels it can interfere with the particulate filter. Get it checked within a week or so, especially if you feel reduced power.
Most repairs run between $150 and $600. A simple cleaning or wiring fix is on the lower end, while replacing the exhaust pressure control valve costs more depending on your vehicle.
It's a moderate concern, not an emergency for most cars. It mainly affects emissions and efficiency, but leaving it unfixed can lead to limp mode or filter problems on diesels, so it's worth addressing soon.
It's a valve that controls how much backpressure builds in the exhaust, helping the engine warm up faster and meet emissions targets. When it malfunctions, the computer can't manage exhaust pressure correctly and sets this code.