Ford Explorer · Diagnostic Trouble Code
P0174 — System Too Lean (Bank 2)
Quick overview of P0174 on your Ford Explorer. Read the full diagnosis guide, then find the repair guides for your vehicle below.
Repair guides that fix P0174
Ford Explorer
2015-2019 Ford Explorer — Fuel Pump Replacement
How to test fuel delivery when pressure is suspect.
Ford Explorer
2011-2014 Ford Explorer — Engine Air Filter Replacement
A restricted air filter can skew the air-fuel mixture.
Ford Explorer
2015-2019 Ford Explorer — Check Engine Light / OBD2 Diagnosis
What that light means and what to check first.
General diagnostic information, not a factory service procedure. If you're unsure, have a qualified technician confirm the diagnosis before buying parts.