IGNITION SYSTEM
Note. All models are equipped with a Distributorless Ignition System (DIS).
FUEL SYSTEM
| WARNING | Always relieve fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components. |
| WARNING | After repairs have been completed, Using fuel pump check connector terminal, activate fuel pump and check for leaks. Repair any leaks as necessary. |
Except Optima & Magentis (Canadian)
To release fuel pressure, remove rear seat cushion. Start engine. Disconnect fuel pump electrical connector. Run engine until it stalls. Turn ignition off. Disconnect negative battery cable. When testing or repair is complete, reconnect fuel pump connector and install rear seat cushion. Prime fuel system. See PRIMING FUEL SYSTEM .
Optima & Magentis (Canadian)
To release fuel pressure, disconnect fuel pump harness connector located in trunk. Start engine and allow to idle. After engine stalls, turn ignition off. Disconnect negative battery cable. When repairs are complete and fuel lines are properly secured, reconnect fuel pump harness connector and negative battery cable. Prime fuel system. See PRIMING FUEL SYSTEM .
PRIMING FUEL SYSTEM
After performing any operation that requires releasing fuel pressure, fuel system should be primed to prevent long cranking times. To prime fuel system, jumper Data Link Connector (DLC) terminal FUEL PUMP and B+. DLC is located on left side of engine compartment. (Scheme 5)or (Scheme 6). Turn ignition on for no longer than 10 seconds to run pump and pressurize fuel system. Turn ignition off and remove jumper wire. Check for leaks. Repair any leaks as necessary.
Scheme 5
Scheme 6
FUEL FILTER
Location of fuel filters vary on each vehicle model. See FUEL FILTER LOCATIONS table (Scheme 7)- (Scheme 10). Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE. Disconnect negative battery cable. Remove fuel lines from filter. Remove fuel filter clamp bolt and remove filter. To install, reverse removal procedure. Prime the system and check for leaks.
| Model | Location |
|---|---|
| Optima, Magentis (Canadian) & Rio | Under Left Side Of Vehicle, Forward Of Fuel Tank |
| Sephia & Spectra | Mounted On Frame Rail, Forward Of Right Rear Wheel |
| Sportage | Mounted On Frame Rail, At Rear of Vehicle |
FUEL FILTER LOCATIONS
Scheme 7
Scheme 8
Scheme 9
Scheme 10
FUEL PUMP
| WARNING | Always relieve fuel pressure before disconnecting any fuel injection-related component. |
Note. The fuel pump assembly (Fuel Delivery Module) incorporates fuel pump and fuel level sending unit. On Sephia and Spectra, fuel pressure regulator is also part of fuel pump assembly.
FUEL DELIVERY PIPE & FUEL INJECTORS
| CAUTION | When removing fuel delivery pipe be careful not to drop any fuel injectors. Cover open end of fuel delivery pipe with a shop towel to prevent residual fuel from spilling from delivery pipe. |