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P127C Buick Code - Fuel Rail Pressure Sensor 2 Circuit Low Voltage

- Code Popularity: 195 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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Code P127C Buick Possible Causes

  • Low or no fuel
  • Faulty Fuel Rail Pressure Sensor 2
  • Fuel Rail Pressure Sensor 2 harness is open or shorted
  • Fuel Rail Pressure Sensor 2 circuit poor electrical connection
  • Faulty Fuel Pump

How do I Fix the Code P127C 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's pins.

Does your Buick have Safety Recalls? → Check here

What is the Cost to Diagnose the Code P127C Buick?

Labor: 1.0

The cost of diagnosing the P127C Buick code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

What are Code P127C Buick Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P127C Buick Description

The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. The fuel rail pressure sensor transmits fuel pressure and temperature information via serial data to the ECM. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The ECM controls the fuel pressure regulator, which regulates high-pressure fuel that goes to the fuel injector rails and the injectors. The Diagnostic Trouble Code (DTC) will be set if the Fuel Rail Pressure Sensor 2 signal is less than a predefined threshold for greater than 1s.

OBDII Code P127C Buick - Fuel Rail Pressure Sensor 2 Circuit Low Voltage -
P127C Buick Code - Fuel Rail Pressure Sensor 2 Circuit Low Voltage

Need More Information on the P127C Buick Code?

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Code P127C Buick comments

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