Skip the auto shop - Our mechanics make house calls

Q: Loss of power my tool says map sencors is bad burning rich

asked by on

The car has lost its power my scan tool says po0105 it's the map sensor it's burning rich i just want to make sure that's the prob and the cat is not plugged up I checked

My car has 187000 miles.
My car has an automatic transmission.

Hello and thank you for contacting YourMechanic. If the engine light is on for code P0105, then the computer has lost communication from the MAP (Manifold Absolute Pressure) sensor. Check the harness to the sensor for any corrosion and look at the pins inside the sensor. Make sure that the pins are not bent or broken. Get a digital meter and check for resistance on the MAP sensor with the engine off and engine running. If there is no resistance, then the sensor has failed. If there is resistance, check to see if the resistance is changing as the engine changes state from off to running. If the resistance does not change, then the sensor has failed. If the resistance is changing with the engine off and the engine on, then there could be a break in the harness to the computer. The sensor may fail as it gets to a specific temperature. I recommend replacing the sensor if you are not getting a resistance or a resistance is not changing. If you need assistance in diagnosing your engine, I recommend having a professional from YourMechanic replace your MAP sensor if necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: camshaft position sensor is bad

Bank 1 normally refers to the side of the engine that the number one cylinder is located. However, since your vehicle has an inline six cylinder engine, you will only have one bank. Therefore, your engine should only have one...

Q: Something dragging under car

Hi. There are quite a few parts that can become loose and drug under the vehicle. Most of the time it is the skid plate under the front of the car. This plastic part will become loose and then drag...

Q: Engine reduction after lower intake gaskets replaced.

If a wire harness was pinched then it most likely got damaged. There may be a wire that is broke or two wires interfering with each other. Have the harness checked where it was damaged to see if they are...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.