* Faulty spark plug wires: If the spark plug wires are old, cracked, or damaged, they can allow water to seep in and cause the engine to misfire. This can lead to a blinking check engine light and other performance issues.
* Bad ignition coils: The ignition coils are responsible for delivering the spark to the spark plugs. If an ignition coil is damaged or faulty, it can cause the engine to misfire and cause the check engine light to blink.
* Clogged fuel injector: If a fuel injector is clogged or dirty, it can prevent fuel from reaching the combustion chamber. This can cause the engine to misfire and cause the check engine light to blink.
* Faulty mass air flow sensor: The mass air flow sensor is responsible for measuring the amount of air entering the engine. If the mass air flow sensor is faulty, it can provide incorrect readings to the engine computer, which can lead to a misfire and cause the check engine light to blink.
* Damaged ignition switch: The ignition switch is responsible for supplying power to the ignition system. If the ignition switch is damaged or faulty, it can cause the engine to misfire and cause the check engine light to blink.
If you are experiencing a blinking check engine light and misfire after rain, it is important to have your vehicle diagnosed by a qualified mechanic. The mechanic will be able to identify the cause of the problem and make the necessary repairs.
