Kia Rio: Engine Control / Fuel System / Fuel Delivery System
Components and components location
Fuel Tank & Filler-Neck Assembly |
1. Fuel Tank
2. Fuel Pump
3 Fuel Pump Plate Cover
4. Fuel Filler Hose
5. Leveling Tube
6. Vapor Tube (Canister → Intake Manifold)
|
7. Vapor Hose (Canister → Fuel
Tank)
8. Vapor Hose (Canister → Air Filter)
9. Vapor Hose (Air Filter → Atmosphere)
10. Fuel Tank Band
11. Filler-Neck Assembly
|
1. Head Assembly
2. Fuel Pressure Regulator
3. Fuel Filter
4. Fuel Pump Motor
5. Fre-Filter
6. Reservoir Cup
|
7. Fuel Sender
8. Fuel Pump Plate Packing
9. Fuel Pump Motor & Fuel Sender Connector
10. Fuel Feed Port
11. Fuel Feed Tube
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Fuel pressure test (low pressure system)
Fuel Pressure Test (Low
pressure system) |
1. |
Release the residual pressure in fuel line.
(Refer to “Release Residual Pressure in Fuel Line” in this group).
When removing the fuel pump relay, a Diagnostic Trouble Code
(DTC) may occur. Delete the code with the KDS/GDS after completion
of “Release Residual Pressure in Fuel Line” work.
|
|
2. |
Install the Special Service Tool (SST).
(1) |
Disconnect the low pressure fuel feed tube from the low pressure
inlet of high pressure fuel pump.
There may be some residual pressure even after “Release
Residual Pressure in Fuel Line” work, so cover the hose
connection with a shop towel to prevent residual fuel from
spilling out before disconnecting any fuel connection.
|
|
(2) |
Install the special service tool for measuring the fuel pressure
in between the low fuel feed tube and the low pressure inlet of
high pressure fuel pump (Refer to the figure below).
|
|
3. |
Inspect fuel leakage on connections among the low fuel feed tube, the
low pressure inlet of high pressure fuel pump, and the SST components with
IG ON.
|
4. |
Measure Fuel Pressure.
(1) |
Start the engine and measure the fuel pressure at idle.
Fuel Pressure:
330 - 370kpa (3.36 - 3.77kgf/cm², 47.86 - 53.66 psi)
|
If the fuel pressure differs from the standard value,
repair or replace the related part (Refer to the table below).
|
Fuel
Pressure
|
Cause
|
Related Part
|
Too Low
|
Fuel filter clogged
|
Fuel Filter
|
Fuel leakage
|
Fuel Pressure Regulator
|
Too High
|
Fuel pressure regulator valve stuck
|
Fuel Pressure Regulator
|
|
(2) |
Stop the engine, and then check for the change in the fuel pressure
gauge reading.
Standard Value: The gauge reading should hold for about
5 minutes after the engine stops
|
If the gauge reading should not be held, repair or replace
the related part (Refer to the table below).
|
Fuel Pressure
(After Engine Stops)
|
Cause
|
Related
Part
|
Fuel Pressure Drops Slowly
|
Leakage on injector
|
Injector
|
Fuel Pressure Drops Immediately
|
Check valve of fuel pump stuck open
|
Fuel Pump
|
|
(3) |
Turn the ignition switch OFF.
|
|
5. |
Release the residual pressure in fuel line (Refer to “Release Residual
Pressure in Fuel Line”).
|
6. |
Test End
(1) |
Remove the Special Service Tool (SST) from the low pressure fuel
feed tube and the low pressure inlet of high pressure fuel pump.
|
(2) |
Connect the low pressure fuel feed tube and the low pressure
inlet of high pressure fuel pump.
|
|
Release residual pressure in fuel line
Release Residual Pressure
in Fuel Line |
There may be some residual pressure even after “Release Residual Pressure
in Fuel Line” work, so cover the hose connection with a shop towel to prevent
residual fuel from spilling out before disconnecting any fuel connection.
|
1. |
Turn the ignition switch OFF and disconnect the battery (-) terminal.
|
2. |
Remove the fuel pump fuse (A).
When removing the fuel pump fuse, a Diagnostic Trouble Code (DTC)
may occur. Delete the code with the KDS/GDS after completion of
“Release Residual Pressure in Fuel Line” work.
|
|
3. |
Connect the battery negative (-) terminal.
|
4. |
Start the engine and let idle.
|
5. |
Turn the ignition switch OFF after the engine has stopped on its own.
|
6. |
Disconnect the battery negative (-) terminal, and then install the fuel
pump fuse (A).
|
7. |
Connect the battery negative (-) terminal.
|
8. |
Delete the Diagnostic Trouble Code (DTC) related the fuel pump fuse with
the KDS/GDS.
|
Components and components location
Components
Description and operation
Description
The ISG OFF switch on the floor console can be used to deactivate the ISG function.
...
Repair procedures
Removal
1.
Release the residual pressure in fuel line.
(Refer to Delivery System - "Release Residual Pressure in Fuel Line”)
...
Other information:
SPORT mode
The sport mode may be selected according to the driver’s preference or road condition.
The mode changes whenever the SPORT MODE button is pressed.
❈ When normal mode is selected, it is not displayed on the cluster.
SPORT mode
SPORT mode focuses on dynamic driving by automat ...
Specifications
Specification
Item
Specification
Type
Normal open
Input voltage
12 V
Coil resistance
3.5 ± 0.2 Ω (at 25°C, 77°F)
Frequency
...