Is P2263 underboost or overboost?

It can be either. P2263 only says actual boost has not followed the target. If P0299 is stored as well, boost was too low; if P0234 is stored, it was too high. On its own, the freeze frame and a road test watching the boost readings show which way it went.

Can I drive with P2263?

Only gently and only to a workshop. Most engines go into limp mode, so power is capped and can drop under load. Avoid motorways, overtaking and towing until it is fixed.

What is the most common cause of P2263?

On many cars it is a boost leak or a vacuum problem: a split intercooler hose, a loose clamp, a split vacuum line or a sticking boost control solenoid. These are also the cheapest to check, so test them before suspecting the turbo.

How much does it cost to fix P2263?

Fixing a boost leak costs 40 to 200 euros and a split vacuum hose 25 to 85 euros. A new boost control solenoid costs 50 to 170 euros, freeing a sticking linkage 60 to 220 euros and a new boost pressure sensor 40 to 140 euros. A replacement turbocharger, only needed when it is worn or seized, costs 700 to 2,300 euros including labour.

P2263: Turbocharger/Supercharger Boost System Performance

Quick Answer

Not safe to drive

P2263 means the turbo system is not producing the boost the engine computer expects for the conditions: actual boost has stayed too far from the target, usually too low but sometimes too high, for longer than allowed. It is a performance code, so it says the system is not doing its job without naming the part. Common causes are a boost leak from a split hose or loose clamp, a split vacuum hose or faulty boost control solenoid, turbo vanes or a wastegate sticking, a faulty boost sensor, and on diesels an EGR valve sticking open. Most engines limit power until it is fixed.

Severity: Moderate · Fuel System
Estimated repair cost: From €25 to €2300+, varies by vehicle

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What does P2263 mean?

P2263 is a fuel system-related diagnostic trouble code classified as moderate severity. When your vehicle's ECU detects this condition, it stores P2263 and illuminates the check engine light.

Where it is on the car

Air filter
Turbocharger
Wastegate or boost control actuator
Intercooler
Boost pressure sensor
Throttle, intake manifold and engine

This code says boost is not what the engine asked for, not that the turbo has failed. The usual causes are a leaking pipe, clamp or intercooler, a sticking wastegate or vane actuator, or a boost sensor fault. Check those before the turbo.

What are the symptoms of P2263?

If your vehicle has triggered P2263, you may notice one or more of these symptoms:

Check engine light on, often with a reduced power message
Limp mode with power capped, especially under load
Slow, flat acceleration or more turbo lag than usual
Whistling or hissing under boost if a charge pipe has split
Black smoke under acceleration on diesels
P0299 or P0234 stored alongside on some cars

What causes P2263?

Here are the most common causes of P2263:

Boost leak from a split intercooler hose, a loose clamp or a cracked intercooler
: high
Split, disconnected or wrongly connected vacuum hose, or a faulty boost control solenoid
: high
Turbo vanes or wastegate sticking with soot or carbon
: medium
Faulty boost pressure sensor or a clogged sensing port
: medium
EGR valve sticking open on diesels, robbing the turbo of exhaust flow
: medium
Worn turbocharger
: low

Is it safe to drive with P2263?

No - address this immediately. Drive gently and only as far as a workshop. Most engines go into limp mode with this code because the engine computer can no longer control boost properly, and power can drop suddenly under load. Avoid motorway merging, overtaking and towing until the fault is repaired.

How do you diagnose P2263?

Follow these steps to pinpoint the root cause of P2263:

Read all stored codes and the freeze frame. P0299 alongside means boost was too low, P0234 that it was too high. A generic OBD2 reader shows the codes, the freeze frame and boost or MAP readings where the engine computer reports them.
With the ignition on and the engine off, compare the boost, MAP and barometric readings. They should agree, roughly 95 to 105 kPa at sea level; a boost sensor that disagrees should be checked first.
Pressure-test the intake system for leaks at 0.5 to 1 bar, checking every hose, clamp and the intercooler.
Check the vacuum hoses from the vacuum pump through the boost control solenoid to the actuator, and check that the actuator holds vacuum and moves through its full travel.
Move the turbo linkage by hand with the actuator disconnected where it is accessible. Stiff or stuck movement points to soot-bound vanes or a seized wastegate.
On diesels, check whether the EGR valve sticks open. Commanding the boost solenoid, the EGR valve or the turbo actuator for a test needs manufacturer-level software; a generic OBD2 reader cannot do it.
After the repair, clear the code and road-test under load, watching that boost follows the throttle.

How much does P2263 cost to fix?

Repair costs for P2263 vary depending on the root cause and your vehicle. Here are typical estimates:

Repair	Parts Cost	Labor Cost	Total Estimate	DIY Difficulty
Fix boost leak (tighten clamps, replace hose)	€10–€80	€30–€120	€40–€200	Moderate
Replace split vacuum hose on the boost control line	€5–€25	€20–€60	€25–€85	Easy
Replace boost control solenoid	€20–€80	€30–€90	€50–€170	Easy
Free and clean a sticking wastegate or turbo vane linkage	€0–€20	€60–€200	€60–€220	Moderate
Replace boost pressure sensor	€20–€80	€20–€60	€40–€140	Easy
Replace turbocharger (vanes or wastegate seized inside the turbo)	€400–€1500	€300–€800	€700–€2300	Professional

Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.

P2263 on specific vehicles

P2263 behaves differently depending on your vehicle. Select your car below for model-specific causes and known issues:

P2263 on Volkswagen

Volkswagen Golf

See Volkswagen-specific causes & cost

These codes are often seen alongside P2263 or indicate related issues:

Common questions about P2263

What does P2263 mean?: P2263 means the turbo system is not delivering the boost pressure the engine computer expects. Actual boost has stayed too far from the target for longer than allowed. The code says the system is underperforming without naming the part, so it needs diagnosing step by step.
Is P2263 underboost or overboost?: It can be either. P2263 only says actual boost has not followed the target. If P0299 is stored as well, boost was too low; if P0234 is stored, it was too high. On its own, the freeze frame and a road test watching the boost readings show which way it went.
Can I drive with P2263?: Only gently and only to a workshop. Most engines go into limp mode, so power is capped and can drop under load. Avoid motorways, overtaking and towing until it is fixed.
What is the most common cause of P2263?: On many cars it is a boost leak or a vacuum problem: a split intercooler hose, a loose clamp, a split vacuum line or a sticking boost control solenoid. These are also the cheapest to check, so test them before suspecting the turbo.
How much does it cost to fix P2263?: Fixing a boost leak costs 40 to 200 euros and a split vacuum hose 25 to 85 euros. A new boost control solenoid costs 50 to 170 euros, freeing a sticking linkage 60 to 220 euros and a new boost pressure sensor 40 to 140 euros. A replacement turbocharger, only needed when it is worn or seized, costs 700 to 2,300 euros including labour.

Read our detailed guides

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