GROUP
Product Improvement

MODEL
See Model List
on Page 1

NUMBER
PI1802Y/Z (Rev 7, 03/22/2024)

DATE
March 2020

PRODUCT IMPROVEMENT CAMPAIGN
ENGINE REPLACEMENT INSTRUCTIONS
FOR DTC P1326 (PI1802Y/Z)

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 related to the Technical Service Bulletin previously published
PI1802 titled “Knock Sensor Detection System - ECU Logic Improvement” equipped w/THETA II
engine. Specifically, this bulletin provides instructions on which procedures to follow if, after
installation of the KSDS, any one of the subject vehicles below returns to the dealer with Diagnostic
Trouble Code (DTC) P1326 (Knock Signal Range/Performance).

Model List:
Year

Model

Engine

Production Date

2014
2015-2018

Optima (TF)
Optima (TF/QF/JF/JFa)

2.4L GDI
2.4L & 2.0L T-GDI

8/29/13 – 4/25/14

2014-2018
2015-2018

Sportage (SL/QL)
Sorento (XMa/UMa)

2.4L & 2.0L T-GDI
2.4L & 2.0L T-GDI

4/16/14 – 7/11/18
9/30/13 – 4/5/18
1/3/14 – 3/7/18

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. Refer to the flow charts found on page 2, then follow the appropriate
procedure as outlined in this bulletin.
A Vehicle Diagnosis Number (VDN) must be created with or without DTC P1326 after scanning
for DTCs, prior to performing PI1802Y/Z. If a VDN is not created, Warranty claim submission
issues WILL occur.
Before conducting the procedure, verify the vehicle is included in the list of affected VINs.

 NOTICE
To ensure 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.

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

X General Manager


X Service Advisors


X Technicians


X Service Manager


X Parts Manager


X Body Shop Manager 
X Fleet Repair


Page 2 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z)

Main Flowchart:
Note: Certain limitations may apply to this Product Improvement Campaign coverage.
Refer to Warranty Bulletin 2020-26 for more details.
Vehicle In
Validate Warranty
Confirm customer complaint as listed on the RO and
note on the RO if vehicle was towed in.
Validate Ownership
Initiate a T/L case if the vehicle has a salvage title,
belongs to a used car dealer, franchise, or auto auction.

KSDS Installed or
DTC P1326 Stored

NO

YES

Oil Dipstick/Oil Cap & Oil
Filler Opening Inspection

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

(OK)

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

Oil Inspection

(NG)

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

(Refer to Page 3 & Appendix 1
for additional instructions)

Refer to the applicable
Flowchart:
A. DTC P1326 Stored
B. Engine Noise
C. Engine No Crank

Maintenance
Verified

YES

Appendix 2
(Action Required)

Techline Verification of
Proper Maintenance
Per Appendix 1

Not Available/Insufficient

OK

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

NG
No Repair Coverage
Diagnosis Claim Only
P180S

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 f or ref erence only; inf ormation may be updated at any time. Always ref er to KGIS f or the latest inf ormation.

TSB: PI1802Y/Z (Rev 7) Multiple Models March 2020

Page 3 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/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.

6.

Take a picture of both, the bottom of
the oil cap and oil filler opening.
Record/Note findings: No oil, oil
sludge, varnish, burnt oil smell
condition(s) found.

 NOTICE
If NO oil is registered on the
dipstick, or oil lacquering, oil
sludge and/or oil varnish is present
(NG), then the engine is therefore
suspect to maintenance neglect.
Review
of
the
vehicle's
maintenance history is required.
If suspect, proceed to the ‘Oil Level
Measurement’ instructions below
and submit with the Techline case.

Oil Level Measurement: (Main Flowchart → PWA Request) NO OIL READING ON DIPSTICK
1.

Remove oil filler cap, remove oil drain
plug and drain oil into the 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 f or ref erence only; inf ormation may be updated at any time. Always ref er to KGIS f or the latest inf ormation.

TSB: PI1802Y/Z (Rev 7) Multiple Models March 2020

Page 4 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z)
A. DTC P1326 Stored
Create PI1802Y Claim – No Techline PWA Required

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

From Main Flowchart
(page 2)

Perform BCT

BCT Result

PASS
(OK)

Replace
Knock Sensor
Page 12.

Repair Completed

No

KSDS Software
Update available

NO PASS
(NG)

Check for updated
software

Yes
KDS Software
Update

Replace
Engine

Yes

No

KSDS Software
Update available

Check for updated
software

Note: If any concerns arise during/after completing the flowchart(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 f or ref erence only; inf ormation may be updated at any time. Always ref er to KGIS f or the latest inf ormation.

TSB: PI1802Y/Z (Rev 7) Multiple Models March 2020

Page 5 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z)
B. Engine Noise
Techline PWA Required; Diagnosis Only Campaign Possible

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

From Main Flowchart
(page 2)

Full system DTC scan
and generate VDN.

Perform BCT

BCT Result

PASS
(OK)

NO PASS
(NG)

Process Completed

No

KSDS Software
update available

Replace Engine

PWA PROCESS

Check updated
software

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

Yes

Connecting
rod bearing
noise?

No

Yes

KDS Software
Update

Refer to PI1802
(As Applicable)

PI180S

 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 f or ref erence only; inf ormation may be updated at any time. Always ref er to KGIS f or the latest inf ormation.

TSB: PI1802Y/Z (Rev 7) Multiple Models March 2020

Page 6 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z)
C. Engine No Crank
Techline PWA Required; Diagnosis Only Campaign Possible

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

From Main Flowchart
(page 2)

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 19.

Process
Completed

NO

KSDS Software
update available

Replace Engine

PWA PROCESS

Check for updated
software

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

YES

Refer to PI1802
(As Applicable)

NO
PASS

BCT Result

PASS

PI180S

KDS Software
Update

 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 f or ref erence only; inf ormation may be updated at any time. Always ref er to KGIS f or the latest inf ormation.

TSB: PI1802Y/Z (Rev 7) Multiple Models March 2020

Page 7 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z)

Engine Replacement Procedure:
1.

Remove the engine assembly by referring
to the “Engine and Transmission
(Transaxle) Assembly → Engine and
Transmission (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.

Place the new engine block on an engine stand.

4.

Install all removed components from the old engine block onto the new engine block
utilizing all parts from Service Kit I and II. Be advised of the following notes.
Tightening torque for Knock Sensor:
13.7 – 17.4 lb.ft (18.6 – 23.5 N.m, 1.9 – 2.4 kgf.m)
Notes:
High Pressure Pump & Roller Tappet:
• Refer to TSB ENG083 for special
attention and handling procedures of
GDI-specific components.
• When installing the high pressure
pump and roller tappet onto the new
engine, apply engine oil to the roller
tappet, and O-rings of the high
pressure pump.
Tightening torques of pump bolts:
9.4 – 10.9 lb.ft (12.8 – 14.7 N.m,
1.3 – 1.5 kgf.m)
Tightening torques of pipe flare nut:
19.5 – 23.9 lb.ft (26.5 – 32.4 N.m,
2.7 – 3.3 kgf.m)

 NOTICE
Refer to TSB ENG083 for gasoline direct injection (GDI) specific information, including
related warnings and cautions for handling high fuel pressure system components.
Printed TSB copy is f or ref erence only; inf ormation may be updated at any time. Always ref er to KGIS f or the latest inf ormation.

TSB: PI1802Y/Z (Rev 7) Multiple Models March 2020

Page 8 of 25
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z)

High Pressure Fuel Pipe:
1. Properly position the new fuel pipe (A)
and then hand-tighten both flare nuts
(B).

B
A

2. Install the pipe retaining bracket and
bolt (C) and torque to specifications.

 NOTICE
If the bracket and bolt are
missing, order and install a new
bracket and bolt.

C

Tightening torque (bracket bolt):
5.8 – 8.7 lb.ft (7.8 –11.8 N.m,
0.8 – 1.2 kgf.m)
3. Using a click-type/electronic torque
wrench and SST 09314-3Q100,
torque both flare nuts (B) to
specifications.

B

Tightening torque (flare nuts):
19.5 – 23.9 lb.ft (26.5 – 32.4 N.m,
2.7 – 3.3 kgf.m)
Click here to see a video tutorial of high
pressure fuel pipe install (includes high
pressure pump install).

 IMPORTANT
The high-pressure fuel pipe
bracket and bolt must be
installed AND properly torqued
prior to torqueing the highpressure fuel pipe flare nuts.

B