What are the causes of car stalling at idle and how to deal with it?
1 Answers
Causes of unstable idle speed and easy stalling in cars include, for example, air intake system leaks, low fuel pressure, clogged air filters, injector atomization leaks, improper idle adjustment, poor spark plug performance, air flow meter failure, etc. Here is extended information on car stalling at idle: 1. Under normal circumstances, the intake air volume must be strictly limited. If there is an intake pipe leak, the air flow sensor cannot measure the actual intake air volume, causing the electronic control unit to inaccurately control the intake air volume, resulting in unstable idle speed. 2. Injector dripping or clogging, or circuit faults affecting the quantity and quality of fuel injection, prevent the injectors from spraying fuel according to the electronic control unit's instructions, leading to an excessively rich or lean mixture, causing poor performance in individual cylinders and unstable idle speed. 3. The air flow meter is one of the main bases for the electronic control unit to determine fuel injection. Faults in the air flow meter or its circuit prevent the electronic control unit from receiving the air flow signal or receiving a distorted signal, leading to inaccurate fuel injection by the injectors, an excessively rich or lean mixture, resulting in excessively low speed and misfires.
