Engine-Codes - Isuzu - P0089 ISUZU

P0089 ISUZU - Fuel Rail Pressure Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0089 ISUZU Possible Causes

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

How is the P0089 ISUZU code repair?

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 labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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When is the code detected?

Fuel rail pressure greater than 1450psi over desired rate

Possible Symptoms

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

P0089 ISUZU Meaning

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.

More Information

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