Chevrolet P11CB: NOx Sensor 1 Performance - Signal High
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Chevrolet P11CB: NOx Sensor 1 Performance - Signal High
OVERVIEWWhat Does The Chevrolet P11CB Code Mean?
The DPF Regeneration is not active. The BARO is between 75-106 kPa (11-15 psi). The ambient air temperature is between -7 to +38°C (19-100°F). The engine run time is greater than 30 s. The engine coolant temperature is between -7 to +123°C (19-253°F). The engine speed is greater than 600 RPM. The battery voltage is greater than 11 V. The NOx sensor is at operating temperature. The DTCs run once per drive cycle when the above conditions are met.
The ECM receives a serial data message from the NOx Sensor Module that the NOx concentration disagrees with the calculated NOx concentration for greater than 5 s.
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman 904-421 Nitrogen Oxide (NOx) Sensor
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Chevrolet P11CB, DTCDECODE.
