Service Buddy
Fuel System

Code P0231

Fuel Pump Low Voltage

Plain English Meaning:Fuel pump not getting enough power

🛑

Red: Stop Driving & Tow

Vehicle may stop running

What You'll Notice (Symptoms)

  • Hard start stalling

Most Common Causes

1Weak wiring failing pump

Verified Repair Playbook

Required Mechanic Tests

A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:

Check voltage under load

Typical Fix Paths & Estimated Costs

Replace pump or wiring $200–$1000

🛒 Parts for P0231 Repair

Common replacement parts for fuel system codes (Paid links)

MAF Sensor$30–$80
Fuel Filter$10–$30
Fuel Injector Cleaner$8–$15

Paid links — we may earn a commission on purchases. Enter your vehicle make/model on eBay for exact fitment.

🚗 Find P0231 Parts for Your Vehicle

Select your vehicle for exact-fit fuel system parts

↑ Select your vehicle to see exact-fit parts