Possible reasons why the car does not start, but the electrics work:
Ignition system:
* Defective battery (low charge or damaged terminals)
* Faulty starter
* Faulty ignition switch
* Faulty spark plugs
*Damaged or dirty ignition wires
* Faulty ignition module
Fuel system:
* Insufficient fuel level in the tank
* Faulty fuel pump
* Clogged fuel filter
* Damaged fuel lines
* Faulty fuel level sensor
Air system:
* Clogged air filter
*Damaged air intake
* Faulty air flow meter
Exhaust system:
* Clogged catalytic converter
* Damaged muffler
Other reasons:
* Damaged timing belt
* Faulty crankshaft or camshaft position sensor
*No spark or fuel in cylinders
*Engine software problems
Diagnosis and elimination:
1. Check the battery: Measure the battery voltage with a multimeter. The voltage should be above 12.6 volts. If the voltage is low, charge or replace the battery.
2. Check the starter: Tap the starter with a hammer or wrench to release any binding. If the starter does not turn on, check its connections and replace if necessary.
3. Check fuel: Check the fuel level in the tank. If there is fuel, check the operation of the fuel pump and replace it if necessary.
4. Check the spark plugs: Remove the spark plugs and inspect them for carbon deposits or damage. Replace damaged spark plugs.
5. Check the air filter: Check the air filter for dirt. Replace the filter if it is dirty.
6. Check Sensors: Check the crankshaft and camshaft position sensors for damage or disconnections. Replace damaged sensors.
7. Check Wiring: Inspect electrical wiring for damage, breaks, or short circuits. Replace damaged wires.
8. Scan for error codes: Use a trouble code scanner to check for stored error codes that may indicate an underlying problem.
If you cannot fix the problem yourself, contact a qualified mechanic for help.