If you’re experiencing issues with your vehicle’s engine performance, it’s possible that the Manifold Absolute Pressure (MAP) sensor may be the culprit. The MAP sensor is responsible for measuring the pressure within the engine’s intake manifold, which provides important information to the engine control module. A faulty MAP sensor can cause a wide range of problems, including poor fuel economy, reduced engine power, and even stalling.

What is an engine manifold absolute pressure (MAP) sensor?

New MAP sensor Hamilton

The manifold absolute pressure (or MAP) sensor is an important sensor that is present in most fuel-injected engines. It detects air pressure levels in your car’s intake manifold and sends this information to the engine onboard computer. The engine computer then uses this information to determine your engine’s manifold air pressure and make necessary changes to ignition timing and fuel injection duration. This improves engine performance and maximises fuel economy and exhaust emissions while driving.

A faulty manifold absolute pressure (MAP) sensor can cause your engine to make incorrect ignition timing and fuel injection duration adjustments according to the air pressure in your engine’s intake manifold. This can result in problems with your engine’s performance, fuel economy and increased emissions.


Symptoms of a damaged engine Manifold Absolute Pressure MAP sensor:

Reduced engine performance – A faulty MAP sensor can lead to your engine not working as well as it should. This can result in your car struggling to accelerate and to go up hills or stalling while you drive or the engine shaky while idling.

Increased fuel consumption – If the MAP sensor is not working correctly, it can cause your car to burn more fuel. This is due to there being an incorrect air/fuel ratio in your engine.

Increased emissions – Problems with the MAP sensor can lead to your car producing more exhaust emissions. A common sign of this is black smoke coming out of your exhaust. High emission levels can lead to your car failing its Warrant of Fitness.

Check engine light on – When a faulty Manifold Absolute Pressure / MAP sensor causes an incorrect level of air to enter your engine, the other sensors in your engine should detect the problem and cause the check engine light to turn on.
Engine light diagnostics in Hamilton >


Why You Should Replace Your MAP Sensor

  • Improve your Engine Performance: A faulty MAP sensor can cause poor engine performance, including reduced power and acceleration. If you’re experiencing these issues, it’s important to have your MAP sensor checked and replaced if necessary.
  • Improve your Fuel Economy: Poor engine performance can also result in poor fuel economy, which can be a significant issue for drivers who are trying to save money at the pump.
  • Reduce Stalling: In some cases, a faulty MAP sensor can cause the engine to stall, which can be dangerous if it occurs while driving.
  • Removal of Engine Warning Light: If the MAP sensor is not working properly, it may trigger a warning light on the dashboard. If you see this light, it’s important to have the MAP sensor checked and replaced if necessary.


Engine MAP Sensor Replacement & Repairs in Hamilton

If you’re experiencing any issues with your engine performance or fuel economy, or if you’ve seen a warning light on the dashboard, it’s important to have your MAP sensor checked by a professional mechanic as soon as possible. With the right care and maintenance, your vehicle will continue to run smoothly and efficiently for years to come. If your car engine in need of MAP diagnostics or a new Manifold Air Pressure / MAP sensor? If so, we can help!

At Grimmer Motors, our talented and experienced mechanics can diagnose and replace a broken, damaged or malfunctioning MAP sensor. This will allow for the correct measurement of air pressure in your engines intake manifold.

For manifold air pressure (MAP) sensor diagnostics, repairs and replacement in Hamilton, contact Grimmer Motors today!


Book Now