The P2230: Barometric Pressure Sensor ‘A’ Circuit Intermittent/Erratic refers to an issue where the barometric pressure sensor ‘A’ is sending inconsistent or erratic signals to the engine control module. This may be caused by a faulty sensor, wiring issues, or loose or corroded connectors. Such inconsistencies can lead to incorrect atmospheric pressure data, which affects the engine’s fuel management and performance.
P2230 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P2230: Barometric Pressure Sensor ‘A’ Circuit Intermittent/Erratic |
| Is it serious? | Yes, as an erratic signal can lead to unreliable engine performance and inefficient fuel mixture adjustments. |
| Possible causes | – Intermittent signal in the barometric pressure sensor ‘A’ circuit – Faulty barometric pressure sensor ‘A’ – Wiring issues – Connector problems |
| How to diagnose? | – Test the barometric pressure sensor ‘A’ circuit for intermittent signals – Inspect wiring and connectors for reliability – Check for mechanical issues affecting sensor operation |
P2230 Meaning
The P2230: Barometric Pressure Sensor ‘A’ Circuit Intermittent/Erratic code signifies that the barometric pressure sensor ‘A’ is not providing a stable and reliable signal. Such erratic or fluctuating readings can prevent the engine control module from accurately measuring atmospheric pressure, which is vital for controlling the fuel-air mixture and ensuring optimal engine performance.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to determine if any additional related codes are present. Multiple codes can provide clues to whether this is part of a larger issue. | OBD-II Scanner |
| Test the Sensor for Intermittent Signals | Use a diagnostic tool or multimeter to monitor the barometric pressure sensor ‘A’ signal. Look for any fluctuations or dropouts that indicate intermittent performance. | Multimeter, Oscilloscope |
| Inspect Wiring and Connectors | Visually inspect the wiring and connectors for any damage, such as fraying, loose connections, or corrosion. Ensure that all connections are tight and secure. | Flashlight, Safety Gloves |
| Check Connector Reliability | Examine the sensor connector for issues like bent pins, corrosion, or signs of wear that could cause unstable readings. Repair or replace as necessary. | Flashlight |
| Inspect for Mechanical Issues | Check for mechanical factors that could be affecting the sensor’s stability, such as vibrations or a loose mounting bracket. Mechanical disturbances can lead to erratic sensor output. | Basic Hand Tools |
| Clear the Code and Test Drive | After repairs, clear the code using an OBD-II scanner and conduct a test drive. Observe sensor readings during the drive to ensure stability and proper functioning. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the vehicle after the test drive to ensure that the P2230 code has not returned. If the code persists, further investigation may be required to identify underlying issues. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
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)