Multiport Fuel Injection (Mfi) General Information; Fuel Injection Control; Idle Speed Control; Ignition Timing Control - Hyundai Tiburon 2003 Workshop Manual

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Fuel System > General Information > Description and Operation,
TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Fuel System > General Information > Description and Operation
MULTIPORT FUEL INJECTION (MFI)
GENERAL INFORMATION

FUEL INJECTION CONTROL

IDLE SPEED CONTROL

IGNITION TIMING CONTROL

OTHER CONTROL FUNCTIONS
1. Fuel Pump Control :
Turns the fuel pump relay ON so that current is supplied to the fuel pumpwhile the engine is cranking or running.
2. A/C Compressor Clutch Relay Control :
Turns the compressor clutch of the A/C ON and OFF.
3. Fan Relay Control :
The radiator fan and condenser fan speeds are controlled in response to theengine coolant temperature and vehicle
speed.
4. Evaporative Emission Purge Control (Refer to GROUP EC).
DIAGNOSTIC TEST MODE
• When an abnormality is detected in one of the sensors or actuators relatedto emission control, the CHECK
ENGINE/MALFUNCTION INDICATOR LAMP illuminatesas a warning to the driver.
• When an abnormality is detected in one of the sensors or actuators, a diagnostictrouble code corresponding to the
abnormality is output.
• The RAM data inside the PCM that is related to the sensors and actuators canbe read by means of the scan tool. In
addition, the actuators can be controlledunder certain circumstances.
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
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24.04.2008