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Showing matches for "BMW 4 Series".
P0304: Cylinder 4 misfire detected
The ECU detected repeated combustion misfires on cylinder 4.
P0456: EVAP system very small leak detected
The fuel-vapor system has a very small leak during the ECU's leak test.
P0014: Exhaust camshaft timing over-advanced, bank 1
The exhaust camshaft position is more advanced than commanded or is slow to return to the expected position.
P0046: Turbocharger boost-control circuit range / performance
Turbo actuator or boost-control response is outside the range expected by the ECU.
P0141: Oxygen sensor heater circuit, bank 1 sensor 2
The downstream oxygen sensor heater circuit is not reaching expected operation.
P0234: Turbocharger overboost condition
Boost pressure exceeded the ECU's permitted target for the operating condition.
P0340: Camshaft position sensor circuit, bank 1
The ECU is missing or cannot trust the camshaft position signal on bank 1.
P0401: Exhaust-gas recirculation flow insufficient
Measured or inferred EGR flow is lower than the controller expects.
P0402: Exhaust-gas recirculation flow excessive
The ECU detects more EGR flow than requested, often because the valve is not closing correctly.
P0403: Exhaust-gas recirculation control circuit malfunction
The ECU detects an electrical fault in the EGR valve or its control circuit.
P0411: Secondary-air injection incorrect flow
The ECU does not see the expected oxygen-sensor response when the secondary-air system runs on cold start.
P0420: Catalyst efficiency below threshold, bank 1
Upstream and downstream oxygen-sensor behavior suggests insufficient catalyst oxygen-storage performance.
P0441: EVAP purge flow incorrect
The fuel-vapor purge system flow is not matching the ECU's commanded behavior.
P0442: EVAP system small leak detected
The fuel-vapor system cannot hold the small vacuum or pressure change expected during the leak test.
P0455: EVAP system gross leak detected
The fuel-vapor system has a large leak or cannot seal during its self-test.
P0480: Cooling fan control circuit 1
The ECU cannot control or verify the primary electric cooling-fan circuit.
P0544: Exhaust-gas temperature sensor circuit, bank 1 sensor 1
The ECU sees an electrical fault in an exhaust-temperature sensor used to protect the turbo and emissions system.
P0741: Torque converter clutch stuck off / performance
The torque converter clutch is not locking as expected or slip remains too high.
P204F: Reductant system performance
The reductant system is not meeting the performance expected by the emissions controller.
P2453: DPF differential-pressure sensor range / performance
The pressure signal used to calculate DPF restriction is implausible or outside range.
P2458: DPF regeneration duration
A diesel particulate filter regeneration took too long or did not complete as expected.
P2459: Diesel particulate filter regeneration frequency
The ECU has detected that DPF regeneration is occurring more frequently than expected.
P2463: Diesel particulate filter soot accumulation
Calculated soot loading has reached a level that requires diagnosis before normal operation can continue.
U0140: Lost communication with body control module
One or more modules have lost communication with the body control module.
U0401: Invalid data received from engine control module
Another control module has received implausible or corrupted information from the engine controller.