Skip the auto shop - Our mechanics make house calls

Q: MAP Sensor - 2001 Chevrolet Suburban 1500

asked by on

I have my "service engine soon" light on my truck, I've had the code checked and read as P0107 "Map Sensor low voltage output", Problem is I have replaced the MAP sensor with a new OEM part, I have replaced the air filters, and even cleaned out the MAF sensor as well but the light is still on. Any other issues that can be the source of that code?

My car has 136000 miles.
My car has an automatic transmission.

A: Hello and thanks for your question. Check t...

Hello and thanks for your question. Check the harness to the MAP (Manifold Absolute Pressure) sensor for voltage. There should be a 5 volt reference that supplies power to the sensor. If you do not have power to the MAP connector, then locate the PCM (Power Control Module, computer of the vehicle) and check for the 5 volt reference that will supply power to the MAP sensor.

If there is power coming out of the PCM, then the harness has a break between the PCM and the MAP sensor connector. If there is no power at the PCM, then check the ground and power to the PCM. If the power and ground is good, then you would need replace the PCM.
I recommend having a professional inspect the Service Engine Light in person so that the proper repairs can be completed.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Hesitation

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...

Q: Immonbiliser

Hi there. Believe it or not, it sounds like you may have a bad battery. If a cell in the battery has failed or has tilted it can create a host of electrical problems. Before replacing anything, have the battery...

Q: It won't stay started it dies after 5 minutes.. 2005 Dodge Ram 1500

Hello there, a few things are going on with your 2005 Dodge Ram. You are off to a good start with your crankshaft and MAP sensor repairs. You did not say if there was a Check Engine Light on for...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.