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P0299

Overview

Code

P0299

Code Type

P

Code Class

P0

System

Engine

Severity Level

Medium

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0299 indicates turbocharger underboost condition (Bank 1)

Symptoms

Poor acceleration; Reduced power; Check Engine Light

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Turbocharger performance and engine power delivery

Possible Causes

Boost leaks; Faulty turbocharger; Wastegate stuck open

Diagnostic Steps

1 Inspect intercooler and boost hoses for leaks; 2 Test turbocharger operation; 3 Check wastegate function; 4 Verify boost pressure sensor data

Drive Safety Notes

Driving is possible but power is reduced Avoid heavy load

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