AutoCodesGMC – P018E 2015 GMC Sierra

P018E 2015 GMC Sierra Code - Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic

Quick Answer

The Powertrain Control Module (PCM) provides a 5-Volt supply to the Fuel Rail Pressure Sensor (FRPS). Common causes include Faulty Fuel Pressure Sensor 'B', Fuel Pressure Sensor 'B' harness is open or shorted, Fuel Pressure Sensor 'B' circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P018E 2015 GMC Sierra indicates Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic.
Common causes
Common causes include Faulty Fuel Pressure Sensor 'B', Fuel Pressure Sensor 'B' harness is open or shorted, Fuel Pressure Sensor 'B' circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 278
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 29, 2022
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Code P018E 2015 GMC Sierra Description

The Powertrain Control Module (PCM) provides a 5-Volt supply to the Fuel Rail Pressure Sensor (FRPS). The PCM also provides a ground on the sensor return circuit. The Fuel Rail Pressure Sensor provides a signal to the PCM on the Fuel Rail Pressure Sensor Signal circuit. This sensor signal voltage changes based on the pressure in the fuel rail. The PCM will detect a low signal voltage at low rail pressures. The PCM will detect a high signal voltage during high rail pressure conditions. The PCM will light the MIL lamp immediately after the diagnostic runs and fails. During this time the customer may experience a power and or speed derate. The PCM will turn off the MIL light after the diagnostic runs and passes in four consecutive drive cycles.
OBDII Code P018E 2015 GMC Sierra - Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic - AutoCodes.com
P018E 2015 GMC Sierra Code - Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic

What are the Possible Causes of the DTC P018E 2015 GMC Sierra?

  • Faulty Fuel Pressure Sensor 'B'
  • Fuel Pressure Sensor 'B' harness is open or shorted
  • Fuel Pressure Sensor 'B' circuit poor electrical connection

How to Fix the DTC P018E 2015 GMC Sierra?

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

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P018E 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P018E 2015 GMC Sierra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P018E 2015 GMC Sierra Code

1. What does the OBDII code P018E mean on a 2015 GMC Sierra?

The P018E code indicates an intermittent or erratic signal from the Fuel Pressure Sensor 'B' circuit, which monitors fuel pressure in the system.

2. What are the common symptoms of P018E on a 2015 GMC Sierra?

Symptoms include rough idling, poor acceleration, decreased fuel efficiency, engine stalling, or the Check Engine Light being illuminated.

3. What causes the P018E code to appear?

Common causes include a faulty fuel pressure sensor, damaged or corroded wiring or connectors, a failing fuel pump, or issues with the vehicle's PCM (Powertrain Control Module).

4. Can I drive my 2015 GMC Sierra with the P018E code?

While the vehicle may still run, driving with this code can lead to poor engine performance and potentially more severe engine or fuel system issues if not addressed promptly.

5. How do I diagnose the P018E code on a 2015 GMC Sierra?

Diagnosis involves using a scan tool to confirm the code, inspecting the fuel pressure sensor and wiring for damage, and testing the sensor's output with a multimeter to check for erratic signals.

6. How can I fix the P018E code on my 2015 GMC Sierra?

Repairs may include replacing the fuel pressure sensor, repairing or replacing damaged wiring or connectors, or updating/reprogramming the PCM if necessary.

7. How much does it cost to repair a P018E code on a 2015 GMC Sierra?

Repair costs can vary but typically range from $150 to $400, depending on whether the issue is with the sensor, wiring, or other components.

8. Can a dirty fuel filter trigger the P018E code?

A clogged fuel filter is unlikely to directly trigger the P018E code but can cause low fuel pressure, which may lead to related issues.

9. Does the P018E code mean I need to replace the fuel pump?

Not necessarily. While a failing fuel pump can cause this code, you should first inspect the fuel pressure sensor and wiring for issues.

10. Can extreme weather conditions cause the P018E code?

Yes, extreme heat or cold can exacerbate wiring or connection issues, leading to intermittent signals from the fuel pressure sensor.

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