TOYOTA PREVIA 91-97 REPAIR MANUAL

5-4 FUEL SYSTEM

Fig. 6 Using a small prytool, remove the clip retaining the

sembly.

racket

ithe

he bot-

3. Drain the fuel from the gas tank.


4. Remove the fuel tank from the vehicle.


5. Remove the access plate bolts, then pull out the fuel pump aj


6. Disconnect the electrical wires from the fuel pump. Pull the
   from the lower side of the fuel pump and remove the fuel pump fro
   fuel hose.


7. Remove the rubber cushion, the clip and the fuel filter from
   torn of the fuel pump.
   To install:
   Install the fuel pump filter to the fuel pump with a new clip.
   Install the fuel pump to the fuel purnp bracket and use new j askets
   Connect the fuel hose to the outlet port of the fuel pump.
   Install the fuel pump bracket. Tighten the bolts to 26 inch Ibs.
   Install the fuel tank and connect all electrical and fuel name:
   Connect the negative battery cable.
   Refill the fuel tank and check for leaks.

9.

10.

11.

12.

13.

14.

TESTING

liter

(3 Nm).

1. Disconnect the fuel pump wiring.


2. Using an ohmmeter, measure the resistance between the ternj nals.
   Standard is 0.2-0.3 ohms at 68°F (20°C).


3. If the resistance is not within specifications, replace the fuel [jump.


4. Connect battery power to the terminals. Check that the fuel pi mp
   operates.

'•This test must be performed quickly (within 10 seconds) to p event
the coil from burning out. Always do the switching at the batter side.

5. If the operation is not as specified, replace the fuel pump.


6. Reconnect the fuel pump wiring.

Throttle Body

REMOVAL & INSTALLATION

1. Disconnect the negative battery cable.


2. Drain the coolant from the throttle body.


3. Remove the air intake connector.


4. Disconnect the throttle position sensor and IAC/ISC valve harness.


5. Label and disconnect the vacuum hoses.


6. Label and disconnect the No. 1 and No. 2 water bypass hosq$.


7. Separate the throttle, accelerator cable and bracket from the Irottle
   body.


8. Remove the two bolts, nuts and throttle body. Discard the g Isket.

To install:

9. Clean and inspect the throttle body if reusing the old one. Using a
   soft brush and carburetor cleaner, clean the cast parts. Using compressed
   air, clean all the passages and apertures.
   i-»Do not clean the throttle position sensor or IAC/ISC valve.


10. Place a new gasket into position and secure the throttle body nuts to
    13ft. Ibs. (18 Nm).


11. Attach the accelerator and throttle cables with bracket to the body.


12. Install and secure the water bypass hoses.


13. Connect the vacuum hoses.


14. Connect the throttle position sensor and IAC/ISC harnesses.


15. Install the air intake connector.


16. Refill the engine with the correct amount of anti-freeze and water
    mixture. Refer to Section 1.


17. Connect the negative battery cable.


18. Start the engine and check for leaks and operation.


19. Reset any electronic components such as the radio.

Fuel Injectors

REMOVAL & INSTALLATION

I See Figures 7 thru 23

1. Disconnect the negative battery cable.


2. Relieve the fuel pressure.

RH Front Sea! Leg

Non-reusable part

Fig. 7 Exploded view of the fuel injectors and related compo-

nents necessary for removal