The P222E: Barometric Pressure Sensor ‘B’ Circuit Intermittent/Erratic refers to a problem where the barometric pressure sensor ‘B’ is providing an inconsistent or erratic signal. This could be caused by a faulty sensor, issues with wiring, or problems with the sensor connector, which can lead to unreliable pressure readings and ultimately affect the engine’s efficiency and performance.
P222E – Quick Overview
Code | Information |
---|---|
Meaning | P222E: Barometric Pressure Sensor ‘B’ Circuit Intermittent/Erratic |
Is it serious? | Yes, as an intermittent or erratic signal can lead to unpredictable engine performance and incorrect fuel management. |
Possible causes | – Intermittent signal in the barometric pressure sensor ‘B’ circuit – Faulty barometric pressure sensor ‘B’ – Wiring issues – Connector problems |
How to diagnose? | – Test the barometric pressure sensor ‘B’ circuit for intermittent signals – Inspect wiring and connectors for reliability – Check for mechanical issues affecting sensor operation |
P222E Meaning
The P222E: Barometric Pressure Sensor ‘B’ Circuit Intermittent/Erratic code indicates that the signal being sent from the barometric pressure sensor is unstable or erratic. This can interfere with the engine control module’s ability to manage fuel and air intake properly, potentially leading to poor engine performance, reduced fuel economy, and fluctuating engine behaviors.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to determine if there are any additional codes present. This can help identify if the issue is part of a more extensive electrical problem. | OBD-II Scanner |
Test the Sensor for Intermittent Signals | Use a diagnostic tool to test the barometric pressure sensor ‘B’ circuit. Observe if the signal is consistent or if there are any fluctuations. Erratic readings indicate a potential fault in the sensor or wiring. | Multimeter, Oscilloscope |
Inspect Wiring and Connectors | Visually inspect all wiring and connectors related to the sensor for signs of damage, wear, or corrosion. Ensure that all connections are secure and not contributing to an intermittent signal. | Flashlight, Safety Gloves |
Check Connector Reliability | Examine the connectors for any loose pins, corrosion, or wear that may cause unreliable contact. Repair or replace as necessary to ensure stable connectivity. | Flashlight |
Inspect for Mechanical Issues | Check for any mechanical issues that could impact the sensor’s operation, such as vibrations or loose mounting, which may contribute to signal irregularities. | Basic Hand Tools |
Clear the Code and Test Drive | Once the faults are addressed, clear the code using an OBD-II scanner and perform a test drive to confirm that the issue has been resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to verify that the P222E code has not returned. If the code reappears, further diagnosis will be required. | OBD-II Scanner |

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Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)