What are the common causes of P054F?

An idle air control valve that will not close. Leaking fuel injectors. A failed fuel pressure sensor. High fuel pressure. A clogged PCV system.

Watch idle fuel quantity and fuel trim on a scan tool. Test the idle air control valve for full travel. Check fuel pressure against spec. Test the injectors for a leak. Clean the PCV system if clogged. Clear the code and retest.

P054F

Idle Control System - Fuel Quantity Higher Than Expected

System: Speed and idle control (P code)
Lamp: Check Engine Light
Category: Powertrain - Computer and Auxiliary Controls

What it means

P054F means Idle Control System - Fuel Quantity Higher Than Expected.

Check these first

An idle air control valve that will not close
Leaking fuel injectors
A failed fuel pressure sensor
High fuel pressure
A clogged PCV system

What to do next

Watch idle fuel quantity and fuel trim on a scan tool
Test the idle air control valve for full travel
Check fuel pressure against spec
Test the injectors for a leak
Clean the PCV system if clogged
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.