P2230 Fault Code

Barometric Pressure Circuit Intermittent

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2230 fault code refers to an issue with the barometric pressure circuit that is intermittent, meaning that the fault may not be present constantly. This code typically indicates that the Engine Control Module (ECM) isn’t receiving a consistent signal from the barometric pressure sensor, which measures the atmospheric pressure to help with engine management decisions.

• The barometric pressure sensor is crucial for optimizing fuel delivery and timing.
• An intermittent fault can lead to variations in engine performance, affecting fuel economy and emissions.

What are the symptoms of the P2230 code?

When the P2230 fault code is triggered, you may experience symptoms such as:

• Check Engine Light (CEL) illuminated on the dashboard.
• Fluctuations in engine performance, including rough idling or stalling.
• Decreased fuel efficiency due to inefficient fuel mixture adjustments.
• In some cases, increased emissions and failed emissions tests.

What causes the P2230 code?

Several factors can contribute to the P2230 fault code, including:

• Poor electrical connections or damaged wiring in the barometric pressure circuit.
• A faulty barometric pressure sensor that fails to send a consistent signal.
• Corrosion or moisture in connectors leading to intermittent signal interruptions.
• Software glitches in the ECM that misinterpret the data from the sensor.

How to fix P2230?

To resolve the P2230 fault code, consider the following steps:

• Inspect the wiring and connectors associated with the barometric pressure sensor for any signs of damage or corrosion.
• Clean or repair any electrical connections to ensure a stable signal.
• Test the barometric pressure sensor and replace it if it is found to be faulty.
• If necessary, update the engine control software to eliminate any software-related issues.
• After repairs, clear the fault code and perform a test drive to verify that the issue has been resolved.