Probable Causes:

Loose Engine Ground
Open E1 Circuit
Open Injector Circuit
Fuel Line Pressure (Blocked Injector)
Open Or Short In Oxygen Sensors Or Circuits
Ignition System
Coolant Temperature Sensor
Airflow Meter Or Air Intake System
ECU

For oxygen sensor or circuit testing, see Code 21. For injector or circuit testing, see LAND CRUISER TEST NO. 11.

NOTE: Diagnostic chart is not available from manufacturer.