How To Fix The P0107 Code: Meaning, Symptoms and Causes in 2023

P0107 is a common OBD II trouble code. What this means is that the signal that comes from your MAP (Manifold Absolute Pressure) sensor is lower than the usual operating range.

One of the common causes of the P0107 trouble code is a wiring problem. We also that the MAP sensor is part of that list.

You should also know that the P0107 is a generic code; this means that it has a similar meaning for all the vehicles manufactured in 1996 and previous years.

You can very much observe this in your trucks or cars produced by Chrysler and GM.

What is the Meaning of the P0107 Code?

To help you have a good understanding of what the trouble code P0107 means, we decided to break it a little bit further. This will enable you to grasp the whole concept easily.

Circuit Input Low

The manifold absolute pressure sensor transmits the current intake pressure that leads to the Engine Control Module (ECM) in a voltage signal form.

When this signal is under the normal operating threshold, the P0107 will then be stored, and this will trigger your engine check light to come on.

Manifold Absolute Pressure (MAP) Sensor

The Manifold Absolute Pressure sensor takes track of the pressure in your intake manifold and then sends it to the engine control module. This pressure can also be called the Barometric Pressure Sensor.

We might use these terms interchangeably in this article so you must take note.

Symptoms of the P0107 C0de

When your MAP sensor does not transmit the right signal back to your ECM, then are likely going to be some symptoms that will have an effect on your vehicle performance.

These are the signs you are probably going to notice:

  • Engine stalling
  • Difficult to start
  • Engine check light
  • Rough idling
  • Black exhaust smoke
  • Low fuel economy

What is the Cause of the P0107 Code? How to Perform Diagnosis…

These are the most common causes that relate to the P0107 code. Most persons, who have some knowledge of the case study, just proceed to have their MAP sensor replaced.

Yes, that might be the problem, but if it isn’t, then you have just wasted a whole of money. You will not have to waste money if you know exactly what you are doing.

We will through the process of how to diagnose the P0107 trouble code in order to avoid unnecessary purchases.

Wiring problems

Before you begin testing the manifold absolute pressure sensor, you need to conduct a quick inspection of the wiring harness.

After that, then you must follow the connection that links the MAP sensor to the point it gets to the rest of the wiring harness.

Suppose you see cracked, exposed, brittle or any slight damages, then you must know that getting it resolved is going to most likely erase the P0107 code.

You need to also examine the pins that plug the manifold absolute pressure sensor into the wiring harness.

MAP sensor voltage testing

This is the right process how to conduct MAP sensor testing using a multimeter.

What is trying to establish here is to determine the amount of voltage that goes to the MAP sensor is the right needed voltage and to ensure that the output voltage from the MAP sensor falls within the specified range.

Once you’ve been able to ascertain that the voltage going into the sensor is OK, but there is a low output voltage; this indicates that your MAP sensor is faulty. Suppose the voltage records lower than 12 volts, then it could most likely mean that you are looking at a wiring issue at hand.

Some of the Other Causes of the P0107 Code

If the problem is not the fault of bad wiring or a faulty MAP sensor after checking them.

You should know that there are other causes that can spring up something like this to develop.

Bad Ground Wire

A problem like this can trigger the P0107 trouble code. This is because when you have a poor ground wire it will certainly affect your sensor, and probably cause complete sensor damage.

Resolving this might need some level of technical know-how, so If you must attempt to fix an issue like this, you must ensure that you know you know what you are doing.

Failure to do this right can lead to other fatal issues.

Damaged Engine Control Module (ECM)

Ultimately when your ECM is damaged, your electronic control unit will be feeding wrong signals and information. This can lead to false illumination of the engine check light.

If this is the issue, then all you have to do is get this repaired. Ensure you do not assume; you must perform the proper diagnosis before coming to a conclusion that this might be the fault.

How much will it Cost to Fix the P0107 Code?

Wiring issues might cost you so much, that even you have to change a few wires to get the problem fixed. But when you are dealing with a bad MAP sensor, then you might think it’s going to cost so much.

Relax! The cost of replacing a damaged MAP sensor is also relatively cheap. Some drivers can even handle this replacement in their garage.

Getting a new sensor will cost about $30-$250, depending on the vehicle model and if you decide to go for the aftermarket or OEM parts.

Seeking the services of a mechanic will incur labor costs of up to $70 or less. Although it doesn’t take so much time to get the replacement in, most auto repair shops have a minimum fee for labor charges.

Final thoughts

The usual solution to getting rid of the P0107 code is to either repair the wiring harness or change your MAP sensor. Any of these repairs should get that solved.

Therefore, we recommend that you check there first before inspecting other areas.

The repair process is pretty straightforward, and even if you can’t carry out the repair yourself, the cost of fixing this problem is very affordable. So in the end, no need to panic.


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