AutoCodes – Generic – P018E

P018E 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 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 2,322

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 29, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
Comments
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Code P018E 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 - Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic - AutoCodes.com — P018E Code - Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic

What does this mean?

What are the Possible Causes of the DTC P018E?

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?

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.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P018E 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.

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Information for Specific Makes

P018E Buick — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Cadillac — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Chevrolet — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Chrysler — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Dodge — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Ford — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E GMC — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Jeep — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Lincoln — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic
P018E Mercury — Fuel Pressure Sensor 'B' Circuit Intermittent/Erratic

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.