HomeDTC Codes › P0089

P0089 — Fuel Pressure Regulator 1 Performance

The fuel pressure regulator is not maintaining proper fuel rail pressure.

Severity: HighRepair: $100-$600Difficulty: Medium

Don't guess — diagnose P0089 the right way

ScanFixAI reads every module, finds the real root cause, and tells you exactly what to check.

Download ScanFixAI Free

Common symptoms of P0089

Common causes of P0089

Repair cost & difficulty

Typical cost to fix P0089: $100-$600 · Difficulty: Medium

Pro tip: Test fuel pressure with a gauge before replacing the regulator.

Vehicles commonly affected

All makes

Related trouble codes

© 2026 ScanFixAI · AI-powered car diagnostics. All trouble codes · Home · Compare

ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.