p0174
Moderate
Dodge · Sedans & Muscle Cars
System Too Lean (Bank 2)
Quick Answer
Error code P0174 on your Dodge Sedans & Muscle Cars means: System Too Lean (Bank 2). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Connect OBD-II scanner and document code
2
Perform fuel pressure test
3
Inspect vacuum lines for cracks
4
Replace faulty oxygen sensor if needed
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
Oxygen sensor
Fuel pressure regulator
Gaskets
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