Traditional Culture Encyclopedia - The 24 Solar Terms - Toyota system status is too rich.
Toyota system status is too rich.
1. Maybe the air flow sensor is dirty or damaged, and the engine circuit and oil circuit are faulty. Remove the air flow sensor from the vehicle, clean with compressed air, and then load the vehicle to observe the data flow.
2. When disassembling and inspecting the spark plugs, it was found that the spark plugs of all cylinders were not installed to the specified torque, which was very loose, and the ignition poles of the spark plugs of all cylinders were black. At this time, due to the insufficient tightening torque of the spark plug, the ignition energy of the spark plug is insufficient, resulting in insufficient combustion of combustible mixture, which is beyond the fuel correction range, and the engine fault light gives an alarm.
Fault analysis of over-concentrated automobile engine system based on extended data;
1, the main reason for the lean mixture is that the fuel injection quantity is insufficient, and various intake sensors cannot accurately detect the intake air quantity.
2. Too much carbon deposit, the fuel injection is adsorbed by carbon deposit, the closed-loop control of oxygen sensor fails, and the mixed gas (fuel injection quantity) is too much.
3. Idle speed and engine meet torque, resulting in rich mixture, ineffective oxygen sensing and inaccurate intake detection.
If it is too thick, the car will be stuffy and the exhaust pipe will smoke. If it is too thin, there will be shooting and the car will be stuffy and unstable.
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