P0171Średni
Zbyt uboga mieszanka — Bank 1
Układ napędowy
Sprawdź szczegóły →P0174
ŚredniSystem Too Lean — Bank 2
OBD-II (EN): System Too Lean (Bank 2)
Code P0174 — System Too Lean — Bank 2. Symptoms: rough engine running (bank 2 cylinders). Possible cause: intake system leak bank 2. Professional diagnosis recommended.
Symptoms
Rough engine running (bank 2 cylinders), jerking, check engine light
Possible causes
Intake system leak bank 2, faulty MAF/MAP sensor, leaking injector gaskets, faulty CCV/PCV valve
Affected systems
Silnik spalinowyUkład dolotowyUkład paliwowy
Related codes
Manufacturer variants
Manufacturer variants (extensions):
Does code P0174 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.