Engine-Codes - Isuzu - P0089 ISUZU

P0089 ISUZU Code - Fuel Rail Pressure Performance

- Code Popularity: 30,136 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0089 ISUZU Code?

  • Faulty fuel pressure regulator
  • Fuel pressure regulator harness is open or shorted
  • Fuel pressure regulator electrical circuit poor connection
  • Faulty fuel pressure sensor

|How to Fix the P0089 ISUZU Code?

Start by checking 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.

|What is the cost to diagnose the P0089 ISUZU code?

Labor: 1.0

The cost to diagnose the P0089 ISUZU code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0089 ISUZU code detected?

Fuel rail pressure greater than 1450psi over desired rate

|What are P0089 ISUZU code possible symptoms?

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

|What Does the P0089 ISUZU Code Mean?

The Engine Control Module (ECM) uses commanded fuel pump flow to determine a desired fuel rail pressure. The actual fuel pressure is monitored using the Fuel Rail Pressure (FRP) Sensor.

Fuel Rail Pressure Performance

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