WTY028_TSB_R1

GROUP
MODEL
FUE
2016-2020MY
Optima (JFa)
NUMBER
DATE
061 (Rev 1, 10/31/2022)
October 2022
TECHNICAL SERVICE BULLETIN
FUEL PUMP FILTER INSPECTION/REPLACEMENT
SUBJECT:
 NOTICE
This bulletin has been revised to include additional information. New/revised sections of this
bulletin are indicated by a black bar in the margin area.
This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY028) to inspect and,
if necessary, replace the fuel pump filter assembly on 2016-2020MY Optima (JFa) vehicles produced from
August 28, 2015 through June 23, 2020, for repairs that may be necessary to address a low-pressure fuel
pump failure to be covered for 15 years / 150,000 miles, whichever comes first starting from the date the
vehicle was first put into service. The affected vehicles may exhibit an intermittent reduction in engine power,
contain an active or stored DTC P1233 and/or exhibit a ‘No Start’ condition due to a cracked fuel pump filter
housing. Follow the procedure outlined in this publication to inspect and, if necessary, replace the Fuel Pump
Filter Assembly with a new one. Refer to the table guide below.
DTC Description:
P1233: Low Pressure Fuel System – High Deviation between target and current pressure.
MY
Engine Type
Inspection Procedure
Page
2016-2020
2.0L-T GDI / 2.4L GDI THETA II
2016-2018
and 1.6L-T GDI GAMMA
A
2
2019-2020
1.6L-T GDI GAMMA
B
3
MY
Engine Type
Replacement Procedure
2016-2020
All
Same
3
A printed copy is for reference only; publication information can be updated at any time.
Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical
publications are listed in ‘Service Releases’ and has the latest service information that has been released.
Page 2 of 4
FUEL PUMP FILTER INSPECTION/REPLACEMENT
SUBJECT:
Inspection Procedure ‘A’: (for 16-18MY 1.6L-T GAMMA and 16-20MY 2.0L-T, 2.4L GDI THETA II)
1.
Using KDS and with engine running ‘ON’,
confirm if DTC P1233 is present.
•
DTC P1233 is not stored, proceed to
step 2.
•
DTC P1233 is stored, then proceed to
Replace the fuel filter by referring to
“Engine Control / Fuel System → Fuel
Delivery System → Fuel Filter → Repair
procedures” in the applicable Shop
Manual on KGIS to complete service.
2.
Shut engine ‘OFF’ and allow vehicle to sit for
three (3) minutes.
3.
Turn ignition switch to ‘ON’ position.
DO NOT START THE ENGINE.
4a.
Using KDS, select ‘Data Analysis’ and highlight
1.
the following two (2) items:
Active Value.
2.
4b.
Select ‘Text’ and change to ‘Graph’.
4c.
Select ‘Actuation Test’ tab and find ‘Fuel Pump
Absolute Electrical Fuel Pump Low Pressure
Absolute Electrical Fuel Pump Low Pressure
Set Point.
Relay’.
5a.
Start the actuation of the Fuel Pump Relay and
immediately observe the ‘Absolute Electrical
Fuel Pump Low Pressure Active Value’ graph on
the KDS screen.
5b.
Graph displays five (5) or more even and
continuous bars of pressure (OK), then no
further action is required.
5c.
Graph displays uneven bars (NG), then proceed
to ‘Replacement Procedure’ on page 3.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: FUE061 (Rev 1) Optima (JFa) October 2022
Page 3 of 4
FUEL PUMP FILTER INSPECTION/REPLACEMENT
SUBJECT:
Inspection Procedure ‘B’: (for 19-20MY 1.6L T-GDI GAMMA)
1a.
DTC P1233 is not stored, proceed to step 2.
1b.
DTC
P1233
is
stored,
then
proceed
to
‘Replacement Procedure’ below to replace the
fuel filter.
2.
Release residual pressure in fuel line by
referring to ‘Engine Control / Fuel System →
Fuel Deliver System → Release Residual
Pressure in Fuel Line’ in the applicable Shop
Manual on KGIS.
DANGER
Failure to properly follow the ‘Release
Residual
Pressure
in
Fuel
Line
Procedure’ may result in serious
injuries.
3.
Check fuel pressure by referring to ‘Engine
Control / Fuel System → Fuel Delivery System
→ Fuel Pressure Test (Low pressure system)’ in
the applicable Shop Manual on KGIS.
After shutting engine off:
•
Fuel pressure gauge reading remains
above 100 kPa (14.5 PSI) after 1 minute
(OK), diagnose customer concern(s)
using
normal
service
procedures.
Follow reassembly instruction on KGIS.
•
Fuel pressure gauge reading drops
below 100 kPa (14.5 PSI) within 1 minute
(NG), then proceed to the ‘Replacement
Procedure’ below.
Replacement Procedure:
1.
Replace the fuel filter by referring to “Engine
Control / Fuel System → Fuel Delivery System
→ Fuel Filter → Repair procedures” in the
applicable Shop Manual on KGIS to complete
service.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: FUE061 (Rev 1) Optima (JFa) October 2022
Page 4 of 4
FUEL PUMP FILTER INSPECTION/REPLACEMENT
SUBJECT:
AFFECTED VEHICLE RANGE:
Model
Production Date Range
Optima (JFa)
August 28, 2015 to June 23, 2020
REQUIRED TOOL:
Tool Name
Figure
Comments
KDS
Kia Diagnostic System
Fuel Pressure Gauge Adapter
SST K353 D4100
Fuel Pressure Gauge
SST 09353 24100
REQUIRED PART:
Part Name
Part Number
Fuel Filter
31112 C2500QQK
Figure
Qty.
1
WARRANTY INFORMATION:
N Code: I3T C Code: ZZ4
Model
Claim
Causal
Type
P/N
Qty.
Repair
Labor Op
Op
Replacement
Description
Code
Time
P/N
Fuel Pump Pressure
Inspection 'A’
JFa
(16-
W
20MY)
31120
C2500
0
222A09I0
Fuel Pump Pressure
Inspection ‘A’ & Fuel
222A09R0
Filter Replacement
Fuel Pump Pressure
Inspection ‘B’
JFa
(1920MY)
W
31120
C2500
222A20I0
(1.6L-T Gamma)
0
0.2
M/H
N/A
0.8
31112
M/H
C2500QQK
0.3
M/H
N/A
Qty.
0
1
0
Fuel Pump Pressure
Inspection ‘B’ & Fuel
Filter Replacement
222A20R0
(1.6L-T Gamma)
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: FUE061 (Rev 1) Optima (JFa) October 2022
0.9
31112
M/H
C2500QQK
1