Reasons for Difficulty in Starting a Hot Passat Lingyu?
1 Answers
High temperatures accelerate gasoline evaporation, affecting fuel pressure and causing vapor lock. Poor operation of the coolant temperature sensor: The coolant temperature sensor adjusts the fuel injection pulse width. If it malfunctions and fails to provide accurate temperature signals, it can affect engine fuel injection, leading to abnormal air-fuel mixture ratios and difficulty in starting. Overheating or short circuit of the intake air temperature sensor: An overheated intake air temperature sensor can cause the fuel mixture to become too rich, while a short circuit or poor grounding can make the mixture too lean. Both overly rich and overly lean mixtures can make the car difficult to start.