GROUP

MODEL

Subsequent Repair Action

2019-2020MY
Optima P/HEV (JF P/HEV)
w/Nu 2.0L GDI

NUMBER

DATE

PI2108Y/Z

August 2023

SUBSEQUENT REPAIR ACTION
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS
FOR DTC P1326 (PI2108Y/Z)

This bulletin provides information related to the Technical Service Bulletin previously published in (PI2108)
titled “Knock Sensor Detection System - ECU Logic Improvement” for certain 2019-2020MY Optima P/HEV
(JF P/HEV) vehicles equipped with Nu 2.0L GDI engine, produced from July 6, 2018 through October 28, 2019.
Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS,
any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock
Signal Range/Performance).
If DTC P1326 is present, first perform the bearing clearance inspection with the Engine Bearing Clearance
Tester device (SST KQ231-2T110QQK). This device checks the rod bearing clearance by placing air and
vacuum into the cylinder block. Measure the bearing clearance and follow the instructions in this bulletin.
Before conducting the procedure, verify the vehicle is included in the list of affected VINs.
Refer to the flowcharts found on pages 2-6, then follow the appropriate procedure as outlined in this bulletin.
Note: Certain limitations may apply to this Product Improvement Campaign coverage. Refer to Warranty
Bulletin 2023-26 for more details.

 IMPORTANT
A Vehicle Diagnosis Number (VDN) must be created with or without DTC P1326, after scanning for
DTCs, prior to performing PI2108Y/Z. If a VDN is not created, Warranty claim submission issues
WILL occur.

 NOTICE
To assure complete customer satisfaction, always remember to refer to KDealer+ Warranty
Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty Coverage Inquiry)
for a list of any additional campaigns that may need to be performed on the vehicle before returning
it to the customer.

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 21

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

SUBJECT:

Main Flowchart:
Vehicle In
Validate Warranty
Confirm customer complaint as listed on the RO and
note on the RO if vehicle was towed in.

Oil Dipstick/Oil Cap & Oil
Filler Opening Inspection

Using KDS, record video and
take (3) photos of:
Oil Inspection
(NG)

1. Oil Dipstick Reading
2. Inside Oil Filler Cap
3. Inside Oil Filler Opening

Oil Inspection
(OK)

(Refer to Page 3 & Appendix 1
for Additional Instructions)

Open Techline
Repair Assistance (RA)
Be prepared to submit all
required documentation.
(Refer to Appendix 1)

KSDS Installed or
DTC P1326 Stored
KSDS requirement waived
until 11/04/2023

Refer to the applicable
Flowchart A,B or C
(Per Appendix 2)

Maintenance Verified

OK

Techline Verification of
Proper Maintenance
Per Appendix 1

Request Maintenance
Records from Customer
In Writing
Receipt Due Within 10 Days

NG
No Repair Coverage
Diagnosis Claim Only
PI210S

Vehicle Out

Follow the applicable flowchart upon documenting customer complaint for one (1) of the three (3) following
concerns from Main Flowchart:
A.

DTC P1326 Stored… (Page 4)

B.

ENGINE NOISE… (Page 5)

C.

ENGINE, NO CRANK… (Page 6)

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 3 of 21
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

Oil Condition and Oil Level Inspection: (Main Flowchart)
1.

Start video showing vehicle and move in
towards the dash VIN tag.

2.

Measure and record oil dip stick level.

3.

Note oil dip stick reading on the RO.

4.

Take a picture of the oil reading on dipstick.

5.

Inspect the inner/bottom of the oil cap and
inside oil filler opening.
Record/Note findings: Oil sludge, varnish,
burnt oil smell condition(s) found.

6.

Inspect the inner/bottom of the oil cap and
inside oil filler opening.
Record/Note findings: Oil sludge, varnish,
burnt oil smell condition(s) found.

7.

Take a picture of both, the bottom of the oil
cap and oil filler opening.

 NOTICE
If oil lacquering, oil sludge or oil
varnish is present, then the engine is
therefore suspect to maintenance
neglect.

Review

of

the

vehicle's

maintenance history is required.

Oil Level Measurement: (Flowcharts B & C → PWA Request)
1.

Remove oil filler cap, remove oil drain plug
and drain oil into the supplied measuring
container SST067BUCK and check oil level.

2.

Record oil level reading on the RO.

3.

Take photo of the drained oil container using
KDS and attach to warranty claim PWA
request.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 4 of 21
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

Flowcharts A/B/C:

A. DTC P1326 STORED
Create PI2108Y Claim – No Techline PWA Required

From Main Flowchart
(page 2)

1. Full system DTC scan and
generate VDN
2. Save Freeze frame Data

Perform BCT

BCT Result

PASS
(OK)

Repair Completed

Replace
Knock Sensor

No

KSDS Software
Update available

NO PASS
(NG)

Check for updated
software

Yes
KDS Software
Update

Yes

Replace
Engine

KSDS Software
Update available

Check for updated
software

No

Note: If any concerns arise during/after completing the flow chart(s), open a Techline case online.

 IMPORTANT
Due to recent updates to KDS, always follow the BCT procedure instructions outlined in KDS. You
may also refer to SST067 for BCT Procedure/Calibration information.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 5 of 21
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

B. ENGINE NOISE
Techline PWA Required; Diagnosis only Campaign Possible

From Main Flowchart
(page 2)

Check oil level and
document on the RO

Full system DTC scan
and generate VDN.

Perform BCT

PASS
(OK)

BCT Result

NO PASS
(NG)

PWA PROCESS
(Incl. Oil Level
Measurement)

Replace Engine

Yes

Connecting rod
bearing noise

No

Process Completed

No

Software update
available

Diagnosis coverage
only; any required
repairs are to be
completed using
normal service
procedures.
Do Not Submit as a
Campaign Claim.

Check updated
software

Yes

Refer to PI2108
(As Applicable)

PI210S

KDS Software
Update

Note: If any concerns arise during/after completing the flow chart(s), open a Techline case online.

 IMPORTANT
Due to recent updates to KDS, always follow the BCT procedure instructions outlined in KDS. You

may also refer to SST067 for BCT Procedure/Calibration information.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 6 of 21
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

C. ENGINE NO CRANK
Techline PWA Required; Diagnosis only Campaign Possible

From Main Flowchart
(page 2)

Measure the
remaining oil in the
crankcase.
There must be at
least 1 quart
remaining in the
crankcase.

Full system DTC scan
and generate VDN

Remove engine
drive belt and spark
plugs

Document engine
rotational torque
VIDEO

Check Max.
Torque Value
(94 lb.ft.)

Under
94 lb.ft.

Perform BCT

Over
94 lb.ft.

See Appendix 1
on page __.

Replace Engine
Create
PI2108 Claim

Oil level in the
crankcase was
less than 1 quart.

Process
Completed

PWA PROCESS
(Incl. Oil Level
Measurement)

NO PASS

BCT Result

PASS

No

KSDS Software
update available

Diagnosis coverage
only; any required
repairs are to be
completed using
normal service
procedures.
Do Not Submit as a
Campaign Claim.

Check for updated
software

Yes

Refer to PI2108
(As Applicable)

PI210S

KDS Software
Update

Note: If any concerns arise during/after completing the flow chart(s), open a Techline case online.

 IMPORTANT
Due to recent updates to KDS, always follow the BCT procedure instructions outlined in KDS. You
may also refer to SST067 for BCT Procedure/Calibration information.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 7 of 21
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

Video Instructions for Seized Engine Inspection: (Flowchart C)
Prepare the vehicle prior to the video by removing the spark plugs and drive belt as well as setting the
torque wrench to 94 lb.ft.
1.

Start video showing the vehicle being worked
on and move the camera in towards the dash
VIN tag.
Note: Continue filming video until step 7.

2.

Show the removed spark plugs.

3.

Show the empty spark plug holes from the
engine.

5.

Show the removed drive belt and attached
torque wrench to crank bolt.

6.

Show the engine being cranked and torque
specification exceeding 94 lb.ft. torque.

7.

Submit video with Techline PWA case.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 8 of 21

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

SUBJECT:

Engine Replacement Procedure:
1.

Replace the engine assembly by referring to the
“Engine Mechanical System → Engine And
Transaxle Assembly → Engine And Transaxle
Assembly → Repair Procedures” chapter in the
applicable Shop Manual on KGIS.

Refer to TSB ENG190 for information regarding
engine replacement practices.

2.

After removal of the engine from the vehicle, remove all components that will need to be transferred
by referring to the applicable Shop Manual on KGIS.

3.

Install all removed components from the old engine block onto the new engine block utilizing all parts
from Service Kit(s).

5.

Reinstall the assembled engine and transmission/transaxle into the vehicle.
Be sure to:
•

Fill crankcase with 5W-30 oil (refer to KGIS for oil fill level requirements)

•

Recommended Product: QUARTZ 9000 FUTURE FGC 5W-30 Full Synthetic SN PLUS, QUARTZ
9000 FUTURE XT 5W30 Full Synthetic SN PLUS,
Mobil Super Synthetic 5W30 or above.
If not available, use other brand 5W30 and Full Synthetic type with API SN/SN+/SP, ILSAC
GF4/GF5 or higher service grade.

6.

•

Fill and bleed the cooling system with 50/50 coolant or mixture appropriate for area.

•

Pressurize the fuel system before starting the vehicle.

•

Reset engine adaptive values and perform steering angle sensor calibration.

Confirm that the Rom ID is up-to-date. If not, reflash the ECU to the latest ROM ID available. Refer to
PI2108 – Knock Sensor Detection System ECU Logic Improvement.

7.

Verify proper operation of the vehicle with road test, and with the engine ON (running), erase any
stored DTCs (e.g., EPS, ESC, and TPMS) that may have been set by this procedure. Verify no leaks
exist and ensure engine oil and coolant are at their proper level.
If any DTCs are still active, follow any related diagnosis and repair as needed.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: PI2108Y/Z Optima P/HEV (JF P/HEV) August 2023

Page 9 of 21
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2108Y/Z)

AFFECTED VEHICLE RANGE:
Model

Production Date Rage

Optima P/HEV (JF P/HEV)