Heated oxygen sensor (HO2S) 1, bank 1 mixture variation between cylinders
Chevrolet · emissions
Data confidence62%
The control module detected a fault associated with the Heated oxygen sensor (HO2S) 1, bank 1 mixture variation between cylinders circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.
Heated oxygen sensor (HO2S) 2, bank 2 - out of range, high
Honda · emissions
Data confidence62%
The control module detected that the Heated oxygen sensor (HO2S) 2, bank 2 value was outside the valid range. This is the manufacturer-specific definition used by Honda.
System Too Lean Banks 1 And 2 (Suspect HO2S)
Jaguar · emissions
Data confidence62%
The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (System). This is the manufacturer-specific definition used by Jaguar.
Electronic throttle system (ETS), closed throttle - range/performance problem
Kia · engine
Data confidence62%
The control module judged the Electronic throttle system (ETS), closed throttle behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Kia.
System too lean, bank 2
Land Rover · fuel
Data confidence62%
The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (System). This is the manufacturer-specific definition used by Land Rover.
Lambda Controller Limit Malfunction Bank 2 Too Rich
Suzuki · emissions
Data confidence62%
The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Lambda Controller Limit Malfunction Bank 2). This is the manufacturer-specific definition used by Suzuki.
Fuel measurement system, Bank 1 - injection timing incorrect
VAG · fuel
Data confidence62%
The control module detected that the Fuel measurement system, Bank 1 - injection timing state or value did not match what was expected. This is the manufacturer-specific definition used by Audi.
System too lean, bank 1 - full load
Volvo · fuel
Data confidence62%
The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (System). This is the manufacturer-specific definition used by Volvo.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
174
Specific fault index within the subsystem.
Frequently asked questions about P1174
What does P1174 mean?
Diagnostic Trouble Code (10 interpretations). The control module detected a fault associated with the Heated oxygen sensor (HO2S) 1, bank 1 mixture variation between cylinders circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.
Is P1174 generic or manufacturer-specific?
P1174 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Ford, Honda, Jaguar, Kia, Land Rover, MINI, Suzuki, VAG, Volvo. The same number can mean something different on other brands.
Can TuningBot remove P1174 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.
ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU
Chevrolet
Ford
Honda
Jaguar
Kia
Land Rover
MINI
Suzuki
VAG
Volvo