AutoCodes – Acura – P0299 Acura

P0299 Acura Code - Turbocharger Underboost Problem

Quick Answer

The Powertrain Control Module (PCM) controls the turbocharger control system to control boost pressure. Common causes include Turbocharger Wastegate Control Valve Stuck Open, Turbocharger Bypass Control Valve Open/Close, Turbine damage or seizure. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0299 Acura indicates Turbocharger Underboost Problem.
Common causes: Common causes include Turbocharger Wastegate Control Valve Stuck Open, Turbocharger Bypass Control Valve Open/Close, Turbine damage or seizure.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,121

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 16, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0299 Acura Description

The Powertrain Control Module (PCM) controls the turbocharger control system to control boost pressure. When the difference between the target boost pressure and actual boost pressure is at a specified value for a predetermined time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0299 Acura - Turbocharger Underboost Problem - AutoCodes.com — P0299 Acura Code - Turbocharger Underboost Problem

What does this mean?

What are the Possible Causes of the DTC P0299 Acura?

Turbocharger Wastegate Control Valve Stuck Open
Turbocharger Bypass Control Valve Open/Close
Turbine damage or seizure
Exhaust pipe clogged
Air cleaner element clogged
Air tube between compressor and intercooler damage/leakage
Turbocharger boost sensor range/performance problem
BARO Sensor range/performance problem

How to Fix the DTC P0299 Acura?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0299 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0299 Acura Code

1. What are the common symptoms of OBDII code P0299 in an Acura indicating a turbocharger underboost problem?

- Common symptoms include reduced engine power, loss of acceleration, and potential engine misfires.

2. What are the possible causes of OBDII code P0299 in an Acura?

- Possible causes can include a stuck wastegate, a leak in the intake system, a faulty boost pressure sensor, or a malfunctioning turbocharger.

3. How can I diagnose the turbocharger underboost problem indicated by OBDII code P0299 in my Acura?

- Diagnosis typically involves checking for any visible leaks in the intake system, testing the wastegate operation, inspecting the boost pressure sensor, and examining the turbocharger for any issues.

4. Can a dirty air filter cause OBDII code P0299 in an Acura?

- Yes, a dirty air filter can restrict airflow to the engine, leading to reduced boost pressure and triggering the code P0299.

5. What are some repair tips for addressing OBDII code P0299 in an Acura?

- Repair tips may include cleaning or replacing the air filter, checking and repairing any leaks in the intake system, testing and potentially replacing the boost pressure sensor, or inspecting and servicing the turbocharger.

6. Is it safe to continue driving my Acura with OBDII code P0299 indicating a turbocharger underboost problem?

- It is not recommended to continue driving with this issue as it can lead to further damage to the engine and turbocharger. It's best to address the problem promptly.

7. How much does it typically cost to repair OBDII code P0299 in an Acura?

- The cost of repair can vary depending on the specific cause of the issue. It's recommended to consult with a mechanic for a proper diagnosis and cost estimate.

8. Can a failing turbocharger cause OBDII code P0299 in an Acura?

- Yes, a failing turbocharger can result in reduced boost pressure, triggering the code P0299. In such cases, the turbocharger may need to be repaired or replaced.

9. Will resetting the OBDII code P0299 in my Acura make the issue go away?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the turbocharger underboost condition. It's important to diagnose and address the root cause of the issue.

10. How can regular maintenance help prevent OBDII code P0299 from appearing in my Acura?

- Regular maintenance, such as changing the air filter and ensuring proper care of the turbocharger system, can help prevent issues like underboost and the triggering of code P0299.