What are the symptoms of a faulty intake and exhaust solenoid valve in the Malibu?

[MacSpencer]

Malibu intake and exhaust solenoid valve failure symptoms: 1. The sensor cannot accurately detect the intake air volume; 2. The engine may operate abnormally or lack power; 3. The engine idles roughly, and in severe cases, the vehicle may fail to start normally; 4. There is a strong fuel smell inside the car, the engine idle speed fluctuates, acceleration is weak, and the engine is prone to stalling. The main reasons for a faulty intake solenoid valve are as follows: 1. Failure of the solenoid valve itself; 2. Loose connections at the terminals; 3. Open circuits in the wiring; Solutions for a faulty solenoid valve are as follows: 1. If the solenoid valve itself is faulty, replace it directly; 2. If the terminals are loose, simply tighten them; 3. If the issue is caused by an open circuit in the wiring, repair the wiring.