p0171
Moderate
Maserati · Sedans & Sports Cars
System Too Lean (Bank 1)
Quick Answer
Error code P0171 on your Maserati Sedans & Sports Cars means: System Too Lean (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Scan diagnostic trouble codes with OBD-II scanner
2
Inspect fuel pressure and verify fuel pump operation
3
Check oxygen sensors with multimeter
4
Look for vacuum leaks using smoke test
5
Clean fuel injectors if necessary
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 replacement kit
Fuel filter
Spark plugs
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