Drive with caution — fix soon.
This code means the engine computer detected a malfunction in the circuit for turbocharger boost sensor 'A', which measures the pressure produced by the turbo. When the signal is faulty or out of range, the computer can't manage boost properly, often leading to reduced power or limp mode. Common fixes include replacing the boost pressure sensor, repairing wiring or connectors, or clearing the fault after fixing a vacuum or intake leak.
$120 – $500
Varies by vehicle and root cause.
Usually yes, at least for short trips, but the car may have reduced power or be in limp mode. It's not an immediate emergency, but you should get it checked soon so the turbo system works properly again.
Most repairs cost between $120 and $500. Replacing the boost sensor is usually affordable, with wiring or connector repairs adding to the price depending on the labor involved.
It's usually moderate rather than urgent. The main effects are reduced power and worse fuel economy, but leaving it unfixed means the computer can't manage boost correctly, so it's best addressed soon.
The boost pressure sensor tells the engine computer how much pressure the turbocharger is producing. The computer uses that reading to control boost and fueling, so a bad signal can throw off power delivery and efficiency.