How much does it cost to fix P0175 on a Ford?

Repair costs for P0175 on Ford vehicles typically range from $150 to $650 depending on the underlying cause. The most common fix is: A leaking or dirty fuel injector on bank 2 causing excess fuel delivery.

Ford Check Engine Code

P0175 on Ford

System Too Rich (Bank 2)

Severity: medium DIY difficulty: 2/5 Ford cost: $150–$650

Last updated April 30, 2026 Also covers: Lincoln, Mercury

P0175 on Ford: what makes it different

P0175 shows up regularly on Ford's V6 and V8 engines with bank-specific fuel trim monitoring, where the ECU detects bank 2 running richer than commanded — a pattern that's fairly common on higher-mileage Fords with aging fuel injectors or MAF sensors.

Most-affected engines

4.6L/5.4L Triton V8 (F-150, Expedition, Crown Victoria)
3.5L/3.7L Duratec V6 (Edge, Fusion)
3.5L EcoBoost V6 (F-150, Explorer)

Common model years: 2004–2016

Most likely cause on Ford

A leaking or dirty fuel injector on bank 2 causing excess fuel delivery

Known Ford engine-family issues

On Ford's Triton V8 and Duratec V6 platforms, bank 2 (typically the passenger or rear bank depending on engine orientation) tends to show up more often in fuel trim codes because that bank's O2 and MAF wiring runs are longer and more exposed to heat, which can accelerate sensor degradation over time.

Ford-specific causes (most common first)

One or more sticking/leaking fuel injectors on the bank 2 side
Contaminated or aging MAF sensor under-reporting airflow, causing the ECU to add fuel
Failing fuel pressure regulator sending excess fuel pressure to bank 2
Bank 2 upstream O2 sensor reading incorrectly and skewing the fuel trim correction
Vacuum leak or PCV system issue affecting one bank more than the other
Weak ignition components causing incomplete combustion that the ECU misreads as a rich condition

Ford-specific diagnostic tip

Pull both short-term and long-term fuel trims for bank 2 specifically — if long-term trim is deeply negative while bank 1 stays normal, focus on bank 2 injectors and O2 sensor rather than a shared component like the MAF, which would typically affect both banks.

Symptoms drivers report

CEL
Black smoke under load
Fuel smell
Fouled spark plugs
Bad fuel economy

Typical repair cost on Ford

Most Ford owners fix P0175 for between $150 and $650, depending on which underlying cause turns out to be at fault. Start with the most-likely cause for your vehicle — A leaking or dirty fuel injector on bank 2 causing excess fuel delivery — before throwing parts at it.

Ford P0175 FAQ

Why is it always bank 2 on my F-150?

It's not a universal rule, but bank 2 fuel and oxygen sensor wiring on many Ford V8/V6 layouts runs a longer path and sees more underhood heat, which can accelerate sensor wear on that side specifically.

Will a MAF sensor cleaning fix P0175?

Sometimes, if a dirty MAF is under-reporting airflow. It's a cheap first step worth trying, but if fuel trims stay high after cleaning, look at the bank 2 injectors and O2 sensor next.

Can a bad injector cause both P0171 and P0175?

No — P0171 is bank 1 lean, P0175 is bank 2 rich, so they point to different sides of the engine. If you're seeing both, it's more likely a shared issue like a MAF sensor or vacuum leak affecting the whole intake.