P0106 OBD-II Trouble Code: Manifold Air Pressure (MAP) Barometric Pressure Sensor Electric Circuit Output Range and Performance Problem

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0106 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0106 code

P0106 is a diagnostic trouble code (DTC) for "Manifold Air Pressure (MAP) Barometric Pressure Sensor Electric Circuit Output Range and Performance Problem". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0106 DIAGNOSTIC Get a fair and transparent estimate upfront

P0106 Trouble code definition

Manifold Air Pressure (MAP) Barometric Pressure Sensor Electric Circuit Output Range and Performance Problem

What the P0106 code means

P0106 is the general code for a problem with the MAP circuit having problem of incorrect voltage output range or an issue with engine performance. The MAP sensor is an integral part of the fuel injection system and provides signals to the Engine Control Unit (ECU) for smooth operation and good fuel economy along with proper performance and power.

What causes the P0106 code?

The MAP circuit for range and performance problem may have several causes:

  • The source of the problem is that the MAP sensor range voltage output is incorrect and out of the programmed input required by the ECU.

  • The most common problem is an air intake system vacuum or intake hose being loose, cracked, or missing it’s plastic fittings and clamps.

  • The wiring or MAP sensor may be bad, brittle, cracked, have a bad connection, or could be too close to the higher voltage consumption components, especially alternators, ignition wires, etc. A poor electrical ground can cause problems also.

  • The sensor itself may simply be operating out of range from fatigue in it’s internal components.

  • MAP sensors must operate within specific ranges to send correct signals for the ECU to coordinate with the throttle position sensor and adjust correctly for proper engine operation.

  • If the engine is not in good condition, is missing, has poor fuel pressure, or there is an internal issue with the engine like a burned valve, it can prevent the MAP sensor from getting a correct output.

  • The ECU could also be bad but that is rare.

What are the symptoms of the P0106 code?

P0106 code will be generally preceded by the Check Engine Light coming on the dashboard display. The vehicle in most cases will not run well, idle poorly, accelerate erratically, run rich, and backfire because the MAP sensor and throttle position sensor will not operate together properly.

How does a mechanic diagnose the P0106 code?

P0106 is diagnosed with an OBD- II scanner. A qualified technician should then reset the OBD- II fault codes and perform a road test of the vehicle to see if the code comes back. He can observe this by watching live data streaming on his scanner while driving. If the code comes back, then the mechanic will need to do a close inspection to see if the vacuum line and other hoses on the intake system are missing, loose, damaged, or disconnected. If these things appear to be correct, the technician should do a voltage output test on the sensor while the engine is running to determine if the output voltages fluctuate with engine speed and load on the engine. Check that all grounds are operating correctly, since any ground related to the ECU could cause signal fluctuations from sensors.

Common mistakes when diagnosing the P0106 code.

Diagnostic errors are largely due to not following the proper procedure. First, follow the test procedure in the diagnosis to insure there is no intake air leak like a bad vacuum hose or connection. The technician must verify that the voltage output of the MAP sensor is correct and fluctuates with the engine speed and proper voltage. Idle voltage is normally 1 to 1.5 volts and full throttle is usually around 4.5 volts.

Do not buy a new MAP Sensor or ECU unless it is clearly at fault.

How serious is the P0106 code?

The P0106 code will result in poor running of the engine and requires immediate attention. Have the vehicle diagnosed as soon as possible. The MAP sensor issue can cause excessive fuel consumption, rough operation and difficulty starting in certain circumstances, and can cause other damage if continued to be driven. Occasionally, if no problems are found, the technician can reset the fault codes and retest it to see if the code or engine light comes back on.

Often times, if the engine warning light comes on immediately at startup, then the OBD- II system can be reset and the vehicle will operate normally.

What repairs can fix the P0106 code?

The most common potential repairs to address the P0106 code are as follows:

  • Verify the code with an OBD-II scanner. Reset the fault codes and perform a road test of the vehicle.

  • If the P0106 code comes back, then follow the test procedure.

  • Inspect the vacuum lines and intake hoses for cracked, loose or missing parts and electrical connector and wiring. Disconnect the electrical connector and then reinstall to insure a fresh and positive electrical connection. Then check the voltage output on the MAP sensor to see if it is in the correct range.

  • At this point it is best to determine if the MAP sensor is defective and if it has no or incorrect output, then replace the MAP sensor. If all checks are good, then a final test to determine if the ECU is bad must be done.

Additional comments for consideration regarding the P0106 code

Many vehicles with mileage over 100,000 have momentary sensor problems that usually occur during start up or prolonged stress situations on the drive train. If the engine warning light comes on and the vehicle seems to be operating normally, the OBD-II system can be reset using the scanner and the problem may not reoccur. This is why it is important to verify the fault and reset it before doing any repairs.

Need help with a P0106 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P0106
Check Engine Light
trouble codes

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0106 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,696

Rating Summary
3,372
162
42
24
96
3,372
162
42
24
96

Theodore

13 years of experience
814 reviews
Theodore
13 years of experience
Working with T is always a pleasure. He's fast, thorough, and always nice. I'm so glad he's in my area!!
2005 SCION XB - CHECK ENGINE LIGHT IS ON - SEATTLE, WASHINGTON

Cyrus

32 years of experience
45 reviews
Cyrus
32 years of experience
Great mechanic, he was honest about the work I needed on my car
2013 CHEVROLET SONIC - CHECK ENGINE LIGHT IS ON - ATLANTA, GEORGIA

Alex

19 years of experience
16 reviews
Alex
19 years of experience
Alex was on time and willing to do a good job. I appreciate his time and Expertise. Thanks Alex!
2012 VOLKSWAGEN JETTA - CHECK ENGINE LIGHT IS ON - ONTARIO, CALIFORNIA

James

27 years of experience
331 reviews
James
27 years of experience
James is a humble and well-versed gentleman in his field. He was honest and did the services in a timely fashion. I’m happy I picked James as my mechanic!
2000 HYUNDAI ACCENT - CHECK ENGINE LIGHT IS ON - CASSELBERRY, FLORIDA

More related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...

Related questions

Q: Why would I continue to have a P0106 code in my 2009 Ford Explorer

If you are continuing to get this code then you either got a bad sensor or you have an issue with a clog in the EGR lines. Both are common. Also, if the check engine light was not cleared after...

Q: Service park assist is displaying on dash

Hello, and thank you for writing in. Your vehicle is equipped with the Park Assist feature which will help you park in difficult situations. When the computer system detects there is an issue, the warning light illuminates to let you...

Q: Venza 2010 L4-2.7L: My check engine light is permanently turned On. I have these codes P0012, P0016, P0017. What needs to be fixe

These are fault codes indicating problems related to the timing of your car's engine. Normally the car will not run very well or sometimes not at all when these are on. I would suggest having an expert from YourMechanic come...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com