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Turbo and boost pressure

P0049 Turbo and boost pressure: too high (turbo)

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P0049 means: Turbo and boost pressure: too high (turbo). The turbo pushes extra air into the engine. Drive gently and have the car checked soon. The repair usually costs about €80–1800 in Estonia. The most common cause: leaking boost hose or intercooler. Other possible causes: turbo actuator (VNT or wastegate) stuck, boost pressure sensor reading wrong.

Is it safe to drive?Get it checked soonDrive gently and have the car checked soon.
Typical repair cost€80–1800parts and labour in Estonia

What it means

The turbo pushes extra air into the engine. The computer found the boost pressure wrong or the turbo control not working. The car often goes into limp mode.

What you may notice

  • Much less power (limp mode)
  • Turbo whistling or hissing
  • Black smoke
  • Engine light on

What could be wrong

  1. 1Leaking boost hose or intercooler
  2. 2Turbo actuator (VNT or wastegate) stuck
  3. 3Boost pressure sensor reading wrong
  4. 4Control solenoid or its vacuum hose
  5. 5Worn turbo

Repair difficulty: Hard

What you can check yourself

Check the boost hoses, especially the joints and around the intercooler. An oily hose points to a leak. Best left to a workshop. It needs a diagnostic tool and experience.

How we fix it

  1. We measure boost pressure on a test drive
  2. We pressure-test the boost hoses
  3. We check the actuator movement and solenoid
  4. We replace the hose or sensor, or repair the turbo

Standard SAE description: Turbocharger/Supercharger Turbine Overspeed

This code usually comes with: Check engine lightSee what the light means →

Related symptoms: Loss of power or limp mode · Smoke from the exhaust

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

Book a diagnostic check

Questions

What does fault code P0049 mean?

Turbo and boost pressure: too high (turbo). The turbo pushes extra air into the engine. The computer found the boost pressure wrong or the turbo control not working. The car often goes into limp mode.

Can I drive with code P0049?

Drive gently and have the car checked soon.

How much does it cost to fix P0049?

Roughly €80–1800 in Estonia. The price depends on exactly what has failed and on the car.

How is P0049 fixed?

We measure boost pressure on a test drive. We pressure-test the boost hoses. We check the actuator movement and solenoid. We replace the hose or sensor, or repair the turbo.

Related codes

P0048Turbo and boost pressure: signal or voltage too high ("A")P0047Turbo and boost pressure: signal or voltage too low ("A")P1557Boost pressure too high (positive deviation)P2261Turbo bypass valve: mechanical faultP2262Turbo and boost pressure: not detectedP0424Catalyst temperature sensor: too low (heated catalyst, bank 1)P0402Too much gas flowing through the EGR valve

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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