Possible reasons for electric lights blinking in a car when the engine is running:
1. Problems with the generator
* Faulty generator or voltage regulator
* Loose or damaged alternator belt
* Poor connections or corrosion in the charging system
2. Battery problems
*Dead or faulty battery
* Poor connections to battery
*Corrosion or sulfation of battery terminals
3. Wiring problems
* Open or short circuit in wiring
* Defective fuse or relay
* Poor wire insulation
4. Problems with electrical appliances
* High current consumption of one of the electrical appliances, which overloads the system
* Faulty or incorrectly connected electrical appliance
5. Problems with the ignition system
* Faulty spark plugs or ignition coils
* Poor connections in the ignition system
6. Other reasons
*Loose or faulty drive belt
* Damaged throttle pipe
* Engine weight problems
Troubleshooting steps:
1. Check the condition of the battery and its connections.
2. Check the tension and condition of the alternator belt.
3. Measure the alternator charging voltage using a voltmeter.
4. Check all fuses and relays.
5. Check wiring for breaks or short circuits.
6. Try turning off electrical appliances one by one to determine which one is causing the overload.
7. Check the ignition system and make sure there are no faulty components.
8. Contact a qualified mechanic for further diagnosis and repair.