p0174
Moderate
Ford · Sedans & Cars
System Too Lean (Bank 2)
Quick Answer
Error code P0174 on your Ford Sedans & Cars means: System Too Lean (Bank 2). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Perform diagnostic scan
2
Check MAF sensor readings
3
Inspect vacuum lines
4
Test fuel injectors
5
Replace defective parts
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
MAF sensor (optional)
Fuel injector (optional)
Vacuum hoses (optional)
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