Diagnostic Trouble Code 66 (P0303)

Cylinder Misfire Tests:

NO. 3 CYLINDER MISFIRE (DTC: P0303)
1) Start engine and warm it up sufficiently.
2) Turn ignition switch "OFF" and wait for at least 3 seconds.
3) Start engine again and drive at 1,500 - 4,000 rpm for at least 10 minutes.
4) Select "MODE 3" with GST.