How To Test The MAP Sensor (2002-2009 4.7L Dodge)

In this tutorial, I'll show you how to accurately test the manifold absolute pressure (MAP) sensor on your 4.7L Dodge Durango (Dakota) using a simple multimeter.

At the end of the tutorial, I'll also show you where you can buy it and save a few bucks.

The fuel system on your 4.7L Dodge Durango (Dakota) relies heavily on the manifold absolute pressure (MAP) sensor to help calculate the amount of air entering the engine.

So, when the MAP sensor fails, it causes quite a bit of havoc on engine performance. The most obvious symptom, of a failed MAP sensor, is the check engine light (CEL) will be shining nice and bright (and a MAP sensor trouble code stored in the PCM's memory).

Here's a list of the symptoms you'll see with a failed MAP sensor:

1. Diagnostic trouble codes (DTCs):
   1. P0106: Manifold Absolute Pressure Sensor Performance.
   2. P0107: Manifold Absolute Pressure Sensor (MAP) Circuit Low.
   3. P0108: Manifold Absolute Pressure Sensor (MAP) Circuit High.
2. Doesn't pass the smog check.
3. Engine idles rough.
4. Engine takes forever to start (extended cranking time).
5. Engine doesn't start.
6. Black smoke coming out of the tail-pipe as engine runs.

Let's jump into the first test in the next subheading.