Misfire or Rough Running

SYMPTOM
Rough running or misfire

Check:
1. Electronic Control Unit *
2. EGR Control System (12)
3. Electronic Air Control Valve (EACV) (14)
4. Manifold Absolute Pressure Sensor (3)(5)
5. Throttle Angle Sensor (7)
6. Fuel Supply

NOTE: Numbers in parentheses are the blink codes displayed on the back of the ECU.