Caution: When performing work on removing and installing fuel system components, the residual fuel pressure in the line must be released as follows:
- turn the ignition key to the "OFF" position;
- remove the fuel pump relay;
- start the engine and burn off any remaining fuel in the line;
- after the engine stalls, turn off the ignition;
- install the fuel pump relay.
1. Before working on the fuel system, disconnect the cable from the negative terminal of the battery.
Caution: Any diagnostic code in the memory of the electronic control unit is erased when the cable from the negative terminal of the battery is removed. Therefore, it is necessary to read the diagnostic codes before disconnecting the battery.
2. Do not smoke or use open flames when working on the fuel system.
3. Do not allow gasoline to come into contact with rubber or leather objects.
4. Working with quick-release fuel line connections.
Note:
- Different quick-release couplings are used on the fuel supply side and on the fuel return side, please be careful.
- Remove abrasive from quick release coupling before use.
- Do not use special tools when working with quick-release couplings.
- Inspect the pipeline and connector. If there is contamination, clean the connector and pipeline.
- Place a plastic bag over the fuel line and connector to prevent dirt from getting in.
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Fuel supply side (from the body side, fuel pump):
a) Disconnect the fuel line by pressing the holder from both sides.
b) Install the fuel line into the connector with the holder until it clicks.
If necessary, apply a small amount of engine oil to the fuel line to facilitate installation.
Note: Before starting work, make sure that there is no dirt on the parts to be joined.
c) Pull the fuel line and connector to ensure that the fuel line is securely fastened.
Fuel return side (fuel pump):
a) Press the lock on both sides and rotate the connector 90°.
b) Disconnect the connector with the fuel line by pressing the lock.
c) Install the retainer as shown in the figure.
d) Install the fuel line into the connector with the holder until it clicks twice (the first click is weak, the second is strong).
If necessary, apply a small amount of engine oil to the fuel line to facilitate installation.
Note: Before starting work, make sure that there is no dirt on the parts to be joined.
d) Squeeze the retainer, hook the retainer teeth onto the connector.
The article is taken from a web resource [Toyotaman.ru]
e) Pull the fuel line and connector to ensure that the fuel line is securely fastened.
Main Fuel Hose:
a) Remove the holder and disconnect the fuel line and connector.
b) Install the fuel line into the connector with the holder until it clicks.
c) Install the holder.
Connector colors:
- from the fuel pump side - yellow
- from the body side - red
5. After servicing the fuel system, check for fuel leaks.
Note: After working with the fuel system, check the engine for leaks and fuel odor for a week.