Cylinder #1. #2. #3. #4 Misfire

FAULT ID
P0301 - P0304

TITLE
Cylinder-1 - Cylinder-4 Misfire Detected

BACKGROUND
- If a misfiring occurs while the engine is running, the engine speed suddenly changes.
- The engine control module checks for changes in the engine speed.

RANGE OF CHECK & SET CONDITIONS
- The number of misfires for every 200 RPM's of the engine exceeds the specified number (single cylinder).
- The number of misfires for every 1,000 RPM's of the engine exceeds the specified number. (single cylinder).

EFFECT
No limp-in

PROBABLE CAUSES
- Ignition system related part(s) failed.
- Engine control module failed.