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P0190 Chevrolet Code - Fuel Rail Pressure Sensor Circuit Malfunction

- Code Popularity: 7,164 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0190 Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low or no fuel
  • Faulty Rail Pressure (FRP) Sensor
  • Faulty Rail Pressure (FRP) harness is open or shorted
  • Faulty Rail Pressure (FRP) circuit poor electrical connection
  • Faulty Fuel Pump
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How to Fix the DTC P0190 Chevrolet?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0190 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine will not start

Code P0190 Chevrolet Description

The Fuel Rail Pressure (FRP) sensor has a 5-volt reference circuit, a signal circuit, and a low reference circuit. The Engine Control Module (ECM) monitors the voltage on the FRP sensor circuits. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The fuel pressure regulator has a solenoid supply voltage circuit and a solenoid control circuit. The ECM controls the fuel pressure regulator, which regulates high pressure fuel that goes to the fuel injector rails and the injectors.

OBDII Code P0190 Chevrolet - Fuel Rail Pressure Sensor Circuit Malfunction - AutoCodes.com
P0190 Chevrolet Code - Fuel Rail Pressure Sensor Circuit Malfunction

Need More Information on the Code?

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Code P0190 Chevrolet comments

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