Fault codes › P0299

P0299

Turbo/Supercharger Underboost

Generic code Injector Circuit High severity Hard repair
Free on OBD DashX

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See P0299 on OBD DashX No sign-up needed · available in 10 languages

iWhat P0299 means

  • The fault code P0299 indicates that the turbocharger or supercharger on the engine isn't providing the expected boost level. This can cause a decrease in engine power and acceleration.

!Possible symptoms

  • Decreased engine power and acceleration
  • Illuminated check engine light
  • Hesitation or lag during acceleration
  • Engine may surge or run rough

?Possible causes

  • Faulty turbocharger wastegate
  • Failed turbocharger or supercharger
  • Restricted or clogged air intake or exhaust
  • Faulty or dirty mass airflow sensor
  • Leaking or damaged hoses or connections

⚙Related parts

  • Turbocharger/Supercharger: Turbocharger compresses in more air into the engine, hence producing more power output. Problem leads to power loss

✓Possible solutions

  • Check and replace the turbocharger wastegate if necessary
  • Replace the faulty turbocharger or supercharger
  • Clean or replace any clogged air intake or exhaust components
  • Clean or replace the mass airflow sensor
  • Check and repair any leaking or damaged hoses or connections
Free on OBD DashX

P0299 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

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