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Check engine light is on — what now?
The check engine light is your car's computer telling you it detected a problem. Sometimes it's minor like a loose fuel cap, sometimes it needs quick attention.
Steady or flashing?
- Steady: a fault needs checking soon, but you can usually drive gently to a workshop.
- Flashing: usually a severe misfire that can damage the catalytic converter. Slow down and stop when safe.
- With a red temperature or oil light: stop immediately and turn off the engine.
Most common causes
- Loose or damaged fuel cap (P0442 / P0455).
- Oxygen sensor or catalytic converter (P0420).
- Weak spark plugs or ignition coils (P0300–P0304).
- Vacuum leak or dirty MAF sensor (P0171).
What to do now
- Check the fuel cap and tighten until it clicks.
- Read the code with an OBD scanner instead of guessing.
- Don't clear the code without fixing the cause — it will come back.
How RA-150 helps
Plug the Raqib RA-150 into the OBD port, open the app and tap Scan: you get the exact code, a plain explanation, and the AI assistant tells you what to do. After the repair you can clear the code and check it doesn't return.
Read the code yourself with Raqib RA-150
Bluetooth scanner + Arabic app and AI assistant. Made and packaged in Egypt.