Engine-Codes - Buick - P128E Buick

P128E Buick Code - Fuel Rail Pressure Performance

- Code Popularity: 1,371 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P128E Buick?

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 Fuel Rail Pressure Sensor
  • Fuel Rail Pressure Sensor harness is open or shorted
  • Fuel Rail Pressure Sensor circuit poor electrical connection
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How to Fix the DTC P128E Buick?

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 P128E Buick 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)

What Does the P128E Buick Code Mean?

During certain engine operating conditions the Engine Control Module (ECM) checks the actual fuel rail pressure reported from the fuel rail pressure sensor and compares the value to a set programed value. If the values are out of the calibrated range for a set amount of time DTC P128E will set.

P128E Buick Code - Fuel Rail Pressure Performance

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