p0174
Moderate
Jeep · SUVs
System Too Lean (Bank 2)
Quick Answer
Error code P0174 on your Jeep SUVs 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
Use OBD-II scanner to confirm Bank 2 lean condition
2
Inspect Bank 2 oxygen sensor condition
3
Test fuel pressure and volume
4
Check for air leaks in intake components
5
Perform test drive after repairs
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 (Bank 2)
Fuel filter
Intake gaskets
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