October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Engine Controls - Tests W/O Codes: Symptoms: Backfiring
- Ensure ignition timing is correct
- Ensure timing belt/chain has not jumped
- Check distributor (if applicable)
- Check for gasoline in oil
- Ensure fuel injectors are not leaking
- Check spark plugs
- Check ignition and coil circuit
- Check engine speed sensor
- Check throttle switch and connector
- Check exhaust system