Hybspec

P0170

Średni

Fuel Trim Adaptation Bank 1 — Malfunction

OBD-II (EN): Fuel Trim System Malfunction Bank 1

Code P0170 — Fuel Trim Adaptation Bank 1 — Malfunction. Symptoms: rough running. Possible cause: intake leak. Professional diagnosis recommended.

Symptoms

Rough running, jerking, increased fuel consumption or lean mixture

Possible causes

Intake leak, faulty MAF/O2 sensor, clogged injectors, low fuel pressure

Affected systems

Silnik spalinowyUkład paliwowy

Related codes

Manufacturer variants

Manufacturer variants (extensions):

Does code P0170 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.