What causes the unexpected reinitialization failure of Peugeot BSI?
2 Answers
Misfire caused by cylinder failure, mainly related to engine issues. Here are the detailed explanations: 1. Engine: For engine misfire due to cylinder failure, primarily inspect the ignition system's performance, including spark plugs, ignition coil energy and timing, and check for any electrical leakage. Examine the fuel system's supply pressure, injector spray volume and timing, and the atomization state. Additionally, verify the cylinder pressure is normal. Excessive carbon buildup in the engine's intake system and combustion chamber can also lead to cylinder failure. Based on these conditions, further inspect the wiring and whether the engine control system meets requirements. 2. Malfunction Indicator Light: If the engine malfunction indicator light is on, check the fault codes in the engine control unit. If only misfire is reported without specifying a cylinder, it's often due to carbon buildup or poor fuel quality, with carbon buildup being the primary cause, especially on the piston tops inside the combustion chamber and the spark plugs.
My Peugeot 308 once experienced an unexpected BSI reset issue. While driving, the windows and door locks suddenly malfunctioned, which was quite frustrating. There could be several reasons: first, severe battery aging causing significant voltage drop during startup, triggering the BSI's protection mechanism to automatically reboot; second, poor wiring connections, especially on bumpy roads or in humid conditions, where loose or corroded plugs cause interruptions; third, software bugs, where outdated firmware versions or programming errors lead to instability; finally, environmental factors like high temperatures affecting internal circuits. To address it, I first replaced the battery, then went to the dealership for diagnostics and a firmware update, which resolved the issue. I recommend regularly checking battery life and wiring harnesses, rather than waiting for a failure to occur.
