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Do you know just how many sensors you have in your vehicle? From the intake system to the exhaust system, you'll find a wide array of sensors helping the engine computer to perform correct operations. One sensor in your ride is the MAP sensor, a sensor mounted in the intake manifold. This is a component that measures the pressure in the manifold and sends the measurement to the computer. The said measurement determines the density of the air and the air mass flow rate, data that help the computer to determine just how much fuel is needed in the combustion chamber to produce the greatest amount of power possible. The MAP sensor works with other sensors in the intake manifold (such as the intake air temp sensor) to provide the computer with accurate reading. You must know, however, that the environment in which the sensor works can get very harsh. Extreme heat and vibrations are elements that the sensor has to deal with everyday, so it should be tough enough to withstand damage. If the one in your ride is weak, it's important that you replace it with a stronger sensor. Look into our catalog at Auto Parts Warehouse for a complete selection of auto parts. Get your needed MAP sensor only here.
Tips on Choosing a New MAP Sensor
The manifold absolute pressure sensor, otherwise known as the MAP sensor, is used in an internal combustion engine's electronic control system. Usually employed for fuel-injected engines, a MAP sensor provides speedy and reliable manifold pressure information to the engine's electronic control unit (ECU). This, in turn, helps in determining the required fuel metering for maximum combustion. If your MAP sensor is busted, then you'll likely be in need of a new one to help your ride maintain its performance. Before making your purchase, however, be sure to properly survey the market. To help you get the best MAP sensor for your ride, here are some basic must-know info on this vital component.
MAP sensor types
- The typical MAP Sensor type does the most basic job of sensing pressure (vacuum) within the manifold. This is ideal for vehicles that do not have speed density fuel injection.
- Another type of MAP sensor is found in vehicles that do have speed density fuel injection. This kind of sensor helps the powertrain control module (PCM) in estimating air flow and monitor air changes in the manifold. We recommend you buy this sensor type.
MAP sensors have capability ranges, which are listed below.
- 1 Bar MAP sensor, which is used for naturally aspirated vehicles.
- 2 Bar MAP sensor (Up to 15 PSI of boost), which is used for forced induction vehicles (Turbo and Supercharged).
- 3 Bar MAP sensor can measure up to 30 PSI of boost for Turbo/ Supercharged vehicles
Most vehicles are naturally aspirated. Makes like Jaguar, SAAB, Subaru, Mitsubishi, and Nissan-and diesel-engine vehicles-come with Turbocharged models. So be sure to get a sensor that's compatible with your vehicle.
- Beck Anley
- AC Delco
- OES Genuine
How to Replace your MAP Sensor
The manifold absolute pressure (MAP) sensor greatly contributes to the functionality of your internal combustion engine. This component measures the air pressure inside the intake manifold, signaling the engine control unit (ECU) to make the necessary changes in ignition timing and fuel injection. A MAP sensor is very vital, and if it were to malfunction, then your vehicle's performance would greatly suffer. In fact, severe sensor damage may prevent your ride from working at all. To remedy such problems, you should replace your busted MAP sensor with a new one right away. Lucky for you, doing so won't take up much of your time and won't cost you big bucks. In fact, all you need are some basic tools and good old fashioned elbow grease and you're good to go. So follow the steps listed below to get your ride back into fighting form.
Difficulty level: Easy
What you'll need:
- Safety gloves and goggles
- Socket set
- Replacement MAP sensor
Step 1: Before getting started, put on some safety gloves and goggles to prevent any unwanted mishaps.
Step 2: Unplug the wiring harness connector of the MAP sensor by prying the tangs on the side of the connector. You can do this with your bear hands, but you may opt to use pliers.
Step 3: Using the necessary socket, remove the retaining bolts and pull the sensor off the engine.
Step 4: Bolt the replacement MAP sensor onto the block and tighten the bolts. Be sure not to over-tighten the bolts because doing so can damage the sensor.
Step 5: Plug the wiring harness connector. See to it that the plug snaps into place and that the tangs sit firmly on the plug.
- Also replace the vacuum hose that connects the MAP sensor to the engine.
- If the same problems persist-poor vehicle performance or unresponsive engine-then return your MAP sensor to the manufacturer or consult a mechanic.