OBD LensOBD Lens App
Diagnostic knowledge / 19602 — P3146 Row 4, probe 1, lambda probe signal: unreliable poor mixture; Exhaust bank4, probe1, lambda probe signal implausible lean
19602

P3146 Row 4, probe 1, lambda probe signal: unreliable poor mixture; Exhaust bank4, probe1, lambda probe signal implausible lean

19602 is described as “P3146 Row 4, probe 1, lambda probe signal: unreliable poor mixture; Exhaust bank4, probe1, lambda probe signal implausible lean” in the Audi / Jetta / MAN / Seat / Skoda / Volkswagen reference.

Manufacturer reference family

Audi / Jetta / MAN / Seat / Skoda / Volkswagen: 19602

de

P3146 Row 4, probe 1, lambda probe signal: unreliable poor mixture; Abgas-Bank4, Sonde1, Lambdasondensignal unplausibelmager

en

P3146 Row 4, probe 1, lambda probe signal: unreliable poor mixture; Exhaust bank4, probe1, lambda probe signal implausible lean

ru

P3146 Ряд 4, зонд 1, сигнал лямбда-зонда: недостоверно бедная смесь; Ряд 4, зонд 1, сигнал лямбда-зонда: недостоверно бедная смесь

Reference namespace
vag
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Skoda, Volkswagen, Audi, Seat, MAN, Jetta.

56 profiles assigned this reference family

32 more related profiles are listed in the vehicle directory.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope