OBD2 Error Code P0106: How to Fix It

Medium 1-2 hours High Severity Verified June 2026
Error Code
P0106
Brand
OBD2
Product Type
automotive
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
OBD2 error code P0106 indicates a problem with your vehicle's Manifold Absolute Pressure (MAP) sensor circuit, which monitors engine vacuum and atmospheric pressure. This sensor helps your engine's computer calculate the correct air-fuel mixture, and when it malfunctions, you may experience poor performance, rough idling, or reduced fuel economy.
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Tools You'll Need

How to Fix Error Code P0106

  1. Clear the code and test drive

    Ensure the vehicle is parked on level ground and engine is cool before beginning diagnostics.
  2. Visually inspect the MAP sensor and wiring

    Turn off the engine and remove keys before inspecting electrical components.
  3. Check vacuum hoses and intake system

  4. Test MAP sensor voltage

    Be careful when working around moving engine parts and hot surfaces.
  5. Perform vacuum pump test

  6. Clean or replace the MAP sensor

    Handle the new sensor carefully to avoid damage to sensitive components.
  7. Clear codes and verify repair

Parts You May Need

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When to Call a Professional

Call a professional mechanic if you're uncomfortable working with electrical systems, if the problem persists after replacing the MAP sensor, or if you discover extensive vacuum leaks requiring intake manifold removal. Also seek professional help if you lack the proper diagnostic tools or if the issue involves complex engine management system problems.

Frequently Asked Questions

What causes OBD2 error code P0106?
P0106 is typically caused by a faulty MAP sensor, damaged or corroded wiring to the MAP sensor, vacuum leaks in the intake system, a clogged or damaged vacuum hose, or rarely, issues with the engine control module (ECM).
Can I drive with P0106 error code?
While you may be able to drive short distances, it's not recommended for extended periods. P0106 can cause poor fuel economy, rough idling, stalling, and potential engine damage due to incorrect air-fuel mixture calculations.
How much does it cost to fix P0106?
DIY repair costs range from $50-150 for a new MAP sensor plus cleaning supplies. Professional repair typically costs $200-400 including labor, depending on your vehicle and local labor rates.
How do I know if my MAP sensor is bad?
Signs of a bad MAP sensor include rough idling, poor acceleration, black smoke from exhaust, poor fuel economy, engine hesitation, and of course, the P0106 error code. Diagnostic testing with a multimeter and vacuum pump can confirm sensor failure.
Where is the MAP sensor located?
The MAP sensor is typically located on or near the intake manifold, either mounted directly to the manifold or connected via a vacuum hose. Some vehicles have it mounted on the firewall or fender well, connected to the intake via a vacuum line.