P0174Średni
Zbyt uboga mieszanka — Bank 2
Układ napędowy
Sprawdź szczegóły →P0171
ŚredniSystem Too Lean — Bank 1
OBD-II (EN): System Too Lean (Bank 1)
Code P0171 — System Too Lean — Bank 1. Symptoms: rough engine idle. Possible cause: intake system leak. Professional diagnosis recommended.
Symptoms
Rough engine idle, hesitation during acceleration, check engine light, increased fuel consumption
Possible causes
Intake system leak, faulty MAF/MAP sensor, clogged fuel injectors, leaking intake manifold gaskets, faulty fuel pressure regulator
Affected systems
Silnik spalinowyUkład paliwowyUkład dolotowy
Related codes
P0170Średni
Adaptacja mieszanki paliwowej bank 1 — usterka
Układ napędowy
Sprawdź szczegóły →Does code P0171 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.