p0174
Moderate
Jaguar · Sedans & Sports Cars
System Too Lean (Bank 2)
Quick Answer
Error code P0174 on your Jaguar Sedans & Sports 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
Check fuel pressure regulator
2
Inspect oxygen sensors on both banks
3
Test vacuum lines
4
Measure MAF sensor output
5
Replace faulty components
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
Vacuum hoses
MAF sensor
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