Pontiac Fiero 1988 Service Manual page 545

6E2-C2-14 DRIVEABILITY AND EMISSIONS - FUEL INJECTION (TBI)
[24] O I L P R E S S U R E SWITCH
4 S 0560-6E
Figure C2 - 20 Oil Pressure Switch - 2.5L E n g i n e
Hose inside diameter must match pipe outside
diameter.
Clamps - Stainless steel screw band type #2494772 or
equivalent.
Fuel Line Repair
1. Cut a piece of fuel hose 4 inches (100 mm) longer
than the section of line to be removed. If more
than 6 inches (152 mm) is to be removed, use a
combination of steel pipe and hose. Hose length
should not be more than 10 inches total.
2. Cut section of pipe to be replaced with a tube
cutter. Use the first step of a double flaring tool to
form a bead on the ends of the pipe and also, on the
new section of pipe, if used.
3. Slide hose clamps onto pipe and push hose 2 inches
(51 mm) onto each portion of the fuel pipe.
Tighten clamp on each side of repair.
4. Secure fuel line to the frame.
FUEL PUMP/OIL PRESSURE SWITCH
(Figure C2 - 20)
The oil pressure switch is mounted on the
Bulkhead Side of the engine, as shown in figure 31.
This switch is a parallel power supply with the fuel
pump relay. If the fuel pump relay should fail, the oil
pressure switch will provide battery voltage to the fuel
pump after 28 kPa (4 psi) oil pressure is reached.
Figure C2-21 - Fuel Pump Relay - 2.5L Engine
FUEL PUMP RELAY
(Figure C 2 - 2 1 )
The fuel pump relay is mounted in the engine
compartment. Other than checking for loose
connectors, the only service possible is replacement.
PARTS INFORMATION
PART NAME GROUP
IVIeterKit,Fuel ••»••••••«•••«••••«••• 3.734
Injector K.it, Fuel ««•«««••••••••••«*••• 3.774
Pump, Fuel (In Tank) • • • « 3.900
Relay, Fuel Pump « 3.900
Switch, Oil Press 1.800
Throttle Body Injection Unit 3.725
Control Kit, Idle Air Valve 3.820