This code is stored by the vehicle’s Engine Control Module (ECM) when it detects that the downstream oxygen sensor (Bank 1, Sensor 2) has an excessive initial lag in its response as the exhaust gas transitions from a lean (high oxygen) state to a rich (low oxygen) state.
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Related Guides
Fault code P0105, applicable to all vehicle manufacturers, indicates “Manifold Absolute Pressure (MAP) Sensor Circuit Malfunction” or “MAP Sensor Circuit Insufficient Activity” . This generic powertrain code signifies that the Powertrain Control Module (PCM) or Engine Control Module (ECM) has detected a problem with the signal from the Manifold Absolute Pressure (MAP) sensor, where the sensor’s output is outside the expected range or shows insufficient activity .
Fault code P0108, applicable to all vehicle manufacturers, indicates “Manifold Absolute Pressure (MAP) Sensor Circuit High Input.”
The P011B is a generic OBD-II (Onboard Diagnostics II) trouble code. Its official definition is “Engine Coolant Temperature / Intake Air Temperature Correlation”.
The P0027 fault code, applicable to all car manufacturers, means “Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)”.
The P0022 fault code, applicable to all car manufacturers, means “A Camshaft Position – Timing Over-Retarded (Bank 2)”.
The B0004 fault code, applicable to all car manufacturers, means “Driver Knee Bolster Deployment Control (Subfault)”.
The B0003 fault code, applicable to all car manufacturers, means “Driver Frontal Stage 3 Deployment Control (Subfault)”.




