Map Sensor Symptoms & Replacement Cost
Your car engine will never run unless air, fuel and a spark come together to make the ignition process happen. Today’s engines function under the same basic principle, it’s just that they are more complex, requiring sophisticated measuring of different elements to ensure proper fuel combustion without having the engine damaged. The manifold absolute pressure (MAP) sensor is responsible for some of these regulations.
What Does It Do
The MAP sensor of a vehicle registers
- air quantity entering via the manifold
- air temperature
- number of revolutions in the engine
This information, goes to the Powertrain Control Module (PCM) of the vehicle for the main purpose of engine load input. This way the PCM uses the MAP sensor lectures, among others, in order to properly calculate and control the correct amount of fuel injection into the cylinders.
Because the majority of current engines are fuel injected, a MAP sensor is required for proper functioning and performance. However, some automobile artisans also use the MAP sensor as a diagnostic tool, allowing mechanics to analyze the performance of the EGR valve.
Symptoms
Having a faulty MAP sensor won’t disable your car right away, however it is highly recommended that proper diagnosis and replacement gets done quickly.
Driving with a failing or failed MAP sensor can bring about the following symptoms:
- Your engine will consume excessive fuel due to the engine being,
- Rich: There’s more fuel than air coming into the engine
- Lean: The quantity of air is higher than the quantity of fuel
- The power drops
- The car will fail the emission test
- Some vacuum leaks might be present
If your engine is not fuel injected, you probably do not have a MAP sensor.
Keep in mind that a failing MAP sensor will normally cause the Check Engine light to bright up. However, it is fairly impossible to notice the failure by visual inspection, that’s why a professional mechanic is required to properly diagnose and replace the sensor.
Costs
Replacement costs vary from vehicle to vehicle and from auto repair shop to another.
Here’s a table that shows the replacement costs of the MAP sensor per auto repair shop.
Your Mechanic
- Parts & Labour
- 12 Months warranty
Total price: $109-$215
Midas
- Parts & Labour
- 12 Months warranty
Total Price: $115-$226
Mr. Tire
- Parts & Labour
- 12 Months warranty
Total Price: $104-$245
NAPA
- Parts & Labour
- 24 Months warranty
Total Price: $119-$227
Walmart
- Parts
- Limited warranty
Total Price: $55-$197
Amazon
- Parts
- Limited warranty
Total Price: $48-$215
Here is a comparison of the replacement costs per vehicle.
Ford F-Series
- Labor: $26-$34
- Parts: $93-$181
Total price: $119-$215
Chevrolet Silverado
- Labor: $26-$34
- Parts: $101-$122
Total price: $127-$156
Ford Focus
- Labor: $26-$34
- Parts: $93-$181
Total price: $119-$215
Toyota Camry
- Labor: $17-$23
- Parts: $112-$180
Total price: $129-$203
Toyota Corolla
- Labor: $17-$23
- Price: $112-$180
Total price: $129-$203
Nissan Altima
- Labor: $44-$56
- Parts: $112-$180
Total price: $129-$203
Honda CR-V
- Labor: $52-$67
- Parts: $69-$91
Total price: $121-$158
Honda Civic
- Labor: $52-$67
- Parts: $69-$91
Total price: $121-$158
Honda Accord
- Labor: $52-$67
- Parts: $69-$91
Total price: $121-$158
Ford Fusion
- Labors: $26-$34
- Parts: $93-$181
Total price: $119-$215
Replacement Process
The replacement process of the MAP sensor consists of:
- Raising and supporting the vehicle
- Removing the faulty MAP sensor
- Carefully cleaning the area and placing the new MAP sensor
- Computer testing and removing of the failure codes
- Testing the vehicle to ensure proper performance
Have any doubts? please visit our website for further information.
