Engine-Codes - Honda - P1129 2010 Honda Accord

P1129 2010 Honda Accord Code - Manifold Absolute Pressure Sensor Circuit Higher Than Expected

- Code Popularity: 5,046 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1129 2010 Honda Accord?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Manifold Absolute Pressure Sensor
  • Manifold Absolute Pressure Sensor harness is open or shorted
  • Manifold Absolute Pressure Sensor circuit poor electrical connection
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How to Fix the DTC P1129 2010 Honda Accord?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1129 2010 Honda Accord code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine hard to start
  • Rough or erratic idle speed

What Does the P1129 2010 Honda Accord Code Mean?

The Manifold Αbsolute Pressure (MΑP) sensor generates a signal that is proportional to the amount of vacuum in the intake manifold. The signal is sent to the Engine Control Mudule (ECM) and the information is used to control the air/fuel mixture ratio. Faulty MΑP sensor can cuase the engine to stall, surge or a rough idle.

P1129 2010 Honda Accord Code - Manifold Absolute Pressure Sensor Circuit Higher Than Expected

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