When it comes to diagnosing and troubleshooting your Mitsubishi vehicle, it can be challenging to determine the root cause of the problem. One common issue that can occur is the Mitsubishi code P2228, which is a Barometric Pressure Circuit Low Input. This code is set when two seconds or more have passed since the engine starting sequence was completed, the battery positive voltage is higher than 8 volts, and the barometric pressure sensor output signal has continued to be 49 kPa (14.5 in. Hg) or lower (approximately 15,000 feet above sea level) for 10 seconds. Understanding what might be causing your Mitsubishi code P2228 and the steps you can take to fix it can help you get back on the road quickly.
💥See also: Mitsubishi Code U0155
Causes and Solutions to Mitsubishi Code P2228
| Cause | Solution |
|---|---|
| ECM Failed | Replace the ECM and PCM |
| PCM Failed | Check wiring and connections for the ECM and PCM |
| Barometric Pressure Sensor Malfunction | Inspect and replace the pressure sensor as needed |
| Vacuum Leaks | Repair any vacuum leaks found in the system |
ECM Failed
When the ECM (Engine Control Module) fails on your Mitsubishi, it can cause your code P2228 to be set. The ECM is responsible for controlling the fuel injection, ignition timing, and other engine functions. If the ECM fails, it can cause a variety of problems, including the P2228 code. The best solution for this is to replace the ECM and PCM (Powertrain Control Module).
PCM Failed
The PCM (Powertrain Control Module) is responsible for controlling the transmission shift points, torque converter lock-up, and other powertrain functions. If the PCM fails, it can cause a variety of problems, including the P2228 code. The best solution for this is to check the wiring and connections for the ECM and PCM.
Barometric Pressure Sensor Malfunction
The barometric pressure sensor reads the atmospheric pressure and sends the signal to the ECM. If the sensor fails, it can cause the P2228 code to be set. The best solution for this is to inspect and replace the pressure sensor as needed.
Vacuum Leaks
Vacuum leaks can also cause the P2228 code to be set. Vacuum leaks are caused by a faulty gasket or a cracked hose. The best solution is to repair any vacuum leaks in the system.
Conclusion
Mitsubishi code P2228 is a Barometric Pressure Circuit Low Input code that can be caused by a variety of issues. In order to diagnose and fix this issue, it is essential to understand the possible causes and solutions. The most common causes are ECM and PCM failure, barometric pressure sensor malfunction, and vacuum leaks. The best solutions for these issues are to replace the ECM and PCM, inspect and replace the pressure sensor as needed, and repair any vacuum leaks found in the system. With the correct diagnosis and solutions, you can quickly get back on the road with your Mitsubishi code P2228.