Hyundai Kona: Fuel Delivery System / Fuel Pump Repair procedures

Inspection
1.
Turn the ignition switch OFF, and then remove battery (-) terminal.
2.
Remove the fuel pump assembly.
3.
Using an ohmmeter, measure the resistance between terminals 1 and 6 of sender connector (A) at each float level.

Pin No
Description
1
Fuel sender ground (-)
2
Fuel pressure sensor (FPS) signal input
3
Fuel pressure sensor (FPS) ground (-)
4
Ground
5
CAN [Low]
6
Fuel sender signal (+)
7
-
8
Fuel pressure sensor (FPS) power supply (+5V)
9
CAN [High]
10
Battery power (B+)

4.
Also, check that the resistance changes smoothly when the float moves from "E" to "F".
Position
Resistance (Ω)
Capacity (L)
E
298 - 305
4
 1/2
85.5 - 87.5
25.6
F
14.0 - 16.0
47.5

Removal
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the fuel pump service cover (A).

4.
Disconnect the fuel pump control module connector (A).
5.
Disconnect the fuel pressure sensor connector (B).
6.
Disconnect the fuel feed tube quick-connector (C).

7.
Remove the locking ring (A) by using the special service tool [No. : 09310-B8100].

8.
Remove the fuel pump from the fuel tank.

Installation
1.
Install in the reverse order of removal.
Fuel Tank Repair procedures
Removal 1. Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") ...

Fuel Filter Repair procedures
Removal 1. Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump") 2. Disconnect the fuel pump motor connect ...

Other information:

Hyundai Kona (OS) 2018-2021 Service Manual: Photo Sensor Repair procedures
Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. ...

Hyundai Kona (OS) 2018-2021 Owners Manual: Maintenance Under Severe Usage and Low Mileage Conditions (Gasoline Engine, except Europe)
The following items must be serviced more frequently on cars mainly used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals. R : Replace I : Inspect and if necessary, adjust, correct, clean or replace Severe driving conditions A : Repeatedly drivi ...

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