The control module detected a fault associated with the HO2S Bank 1 Sensor 3 Rich or High Voltage 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.
TuningBot DTC Database · v4.37.15
P1144 Diagnostic Trouble Code (8 interpretations)
8 manufacturer-specific interpretations across 7 manufacturers in the TuningBot DTC database.
Chevrolet
1 interpretation
Dodge
1 interpretationThe control module detected a fault associated with the Fuel Rail Pressure Malfunction Positive Volume Deviation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
Hyundai
1 interpretationThe control module detected improper operation of the Slow Cut Solenoid. This is the manufacturer-specific definition used by Hyundai.
Jaguar
1 interpretationThe control module detected improper operation of the Air Assisted Injector Control Valve circuit. This is the manufacturer-specific definition used by Jaguar.
Jeep
1 interpretationThe control module detected a fault associated with the Fuel Rail Pressure Malfunction Positive Volume Deviation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Jeep.
Nissan
1 interpretationThe control module detected a fault associated with the Heated oxygen sensor (HO2S) 1, bank 1 - rich shift monitoring circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Nissan.
Possible causes
- Wiring
- HO2S
- fuel system
- injector
- ECM
VAG
2 interpretationsThe control module detected an interruption (open circuit) in the Mass air flow (MAF) sensor, Bank 1 circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Possible causes
- Wiring open circuit/short to ground
- MAF sensor
The control module detected a short circuit to ground in the Mass Air Flow Sensor (G70): Open or circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17552. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Symptoms
- MIL on
- Excessive smoke from Exhaust
- Reduced Engine Output
Possible causes
- Fuse or Wiring Harness Issue
- Failed Mass Air Flow Sensor (G70)
Recommended checks
- Check Fuses and Wiring Harness, see Factory Repair Manual
- Check Measuring Value Blocks
- Check EGR with TDI engines
Related and nearby codes
How to read P1144
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 P1144
What does P1144 mean?
Diagnostic Trouble Code (8 interpretations). The control module detected a fault associated with the HO2S Bank 1 Sensor 3 Rich or High Voltage 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 P1144 generic or manufacturer-specific?
P1144 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Dodge, Hyundai, Jaguar, Jeep, Nissan, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1144 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)
