P1128 2009 HONDA ACCORD Code - Manifold Absolute Pressure Sensor Signal Lower Than Expected
|P1128 2009 HONDA ACCORD code possible causes
- Engine mechanical condition
- Faulty Manifold Absolute Pressure (MAP) sensor
- Manifold Absolute Pressure (MAP) sensor harness is open or shorted
- Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection
|How do I fix the P1128 2009 HONDA ACCORD code?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's pins.
|Cost of diagnosing the P1128 2009 HONDA ACCORD code
Labor: 1.0The cost of diagnosing the P1128 2009 HONDA ACCORD code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
|What are P1128 2009 HONDA ACCORD code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
|P1128 2009 HONDA ACCORD code descriptionThe Manifold Absolute Pressure (MAP) sensor senses manifold absolute pressure (vacuum) and converts it into electrical signals. The MAP sensor outputs low signal voltage at high-vacuum (idling) and high signal voltage at low-vacuum (throttle valve wide open).
The engine control module (ECM) compares a predetermined MAP value at a given throttle position and manifold absolute pressure to the output voltage value of the MAP sensor.
If the MAP sensor outputs lower voltage than expected, the ECM detects a malfunction and stores a DTC.
|Need more information with the P1128 2009 HONDA ACCORD code?Need more information on how to fix the P1128 2009 HONDA ACCORD code? Get Access to Factory Service Manuals
|Need help with a P1128 2009 HONDA ACCORD code?Get the P1128 2009 Honda Accord code diagnosed by a professional: Find a repair shop in your area
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