The intake manifold pressure (IMP) sensor measures the pressure of the air flowing into the engine. This information is used by the engine control unit (ECU) to calculate the amount of fuel to inject and the timing of the spark plugs.
If the IMP sensor detects a pressure that is too low, it can cause the engine to run lean. This can lead to a number of problems, including:
* Engine knocking
* Engine pinging
* Loss of power
* Increased fuel consumption
In some cases, a low IMP sensor reading can also cause the engine to stall.
Causes of Mazda Code NA351
There are a number of things that can cause the Mazda code NA351 to be set. Some of the most common causes include:
* A vacuum leak in the intake manifold
* A faulty IMP sensor
* A dirty intake air filter
* A clogged fuel injector
* A restricted exhaust system
How to Fix Mazda Code NA351
The first step in fixing the Mazda code NA351 is to inspect the intake manifold for vacuum leaks. If any leaks are found, they should be repaired.
If there are no vacuum leaks, the next step is to test the IMP sensor. This can be done using a multimeter or a scan tool. If the sensor is faulty, it should be replaced.
If the IMP sensor is good, the next step is to clean the intake air filter. A dirty air filter can restrict the airflow into the engine, which can cause the IMP sensor to read low.
If the air filter is clean, the next step is to check the fuel injectors. A clogged fuel injector can cause the engine to run lean, which can cause the IMP sensor to read low.
If the fuel injectors are clean, the next step is to check the exhaust system for restrictions. A restricted exhaust system can cause the engine to run lean, which can cause the IMP sensor to read low.
Conclusion
If you are experiencing the Mazda code NA351, it is important to have the problem diagnosed and repaired as soon as possible. This will help to prevent the engine from being damaged.
