The control module detected that the O2 Sensor responded more slowly than expected. This is the manufacturer-specific definition used by BMW.
TuningBot DTC Database · v4.37.15
P1026 BMW - O2 Sensor Circuit Slow Response in Lean Control Range Bank 1 Sensor 1
Manufacturer-specific interpretation for BMW. All interpretations of P1026
What P1026 means
Related and nearby codes
How to read P1026
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1026
What does P1026 mean?
O2 Sensor Circuit Slow Response in Lean Control Range Bank 1 Sensor 1. The control module detected that the O2 Sensor responded more slowly than expected. This is the manufacturer-specific definition used by BMW.
Is P1026 generic or manufacturer-specific?
P1026 is a manufacturer-specific code. In this database it is documented for: BMW. The same number can mean something different on other brands.
Can TuningBot remove P1026 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Oxygen Sensors (Lambda)
