P1129 – Acura DTC

Acura DTC P1129 – MAP Higher Than Expected

DTC P1129 meaning on Acura

DTC P1129 on an Acura refers to an issue with the Manifold Absolute Pressure (MAP) sensor providing a reading that is higher than expected by the Engine Control Module (ECM). The ECM uses the MAP sensor to determine the engine load and calculate the appropriate air-fuel mixture for efficient combustion.

Acura DTC P1129 symptoms

Symptoms of DTC P1129 on an Acura may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced engine performance
• Engine hesitation or stalling
• Increased fuel consumption

Acura DTC P1129 causes

Common causes of DTC P1129 on an Acura include:

• Defective MAP sensor
• Vacuum leaks in the intake system
• Wiring or connector issues in the MAP sensor circuit
• Incorrect engine timing

Acura DTC P1129 seriousness

While DTC P1129 may not cause immediate harm to the engine, it can lead to poor performance and reduced fuel efficiency. Ignoring this issue can potentially cause further damage to engine components over time.

How to diagnose DTC P1129 on Acura

To diagnose DTC P1129 on an Acura, you can perform the following steps:

1. Use an OBD-II scanner to retrieve the trouble code and freeze frame data
2. Inspect the MAP sensor and its wiring for any visible damage or corrosion
3. Check for vacuum leaks in the intake system
4. Verify the engine timing is set correctly

How to fix DTC P1129 on Acura

To fix DTC P1129 on an Acura, you can try the following solutions:

1. Replace the faulty MAP sensor
2. Repair any vacuum leaks in the intake system
3. Inspect and repair any damaged wiring or connectors in the MAP sensor circuit
4. Ensure the engine timing is correctly adjusted

How to erase DTC P1129 on Acura

After fixing the underlying issue causing DTC P1129 on an Acura, you can erase the trouble code by:

1. Using an OBD-II scanner to clear the code
2. Disconnecting the car battery for a few minutes to reset the ECM