14. Prior to the initial measurement, the
program will automatically check if the
engine noise tester is installed and
operating correctly at engine idle and
perform an internal diagnosis.
Begin the second part of the engine
noise tester check by selecting “Start”.

 NOTICE
If the measured noise level is
too low or abnormally high, an
engine noise tester inspection
message will pop up. Check and
correct as necessary and start
again.

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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

15. With the vehicle in Park (A/T) / Neutral
(M/T), increase and maintain the engine
speed at 2,000-3,000 RPM for thirty (30)
seconds.
The program will automatically proceed
to the next step when the engine noise
tester is ready.

 NOTICE
Once the RPM is in the specified
range, the time count (green
bars) will be initialized.

16. With the vehicle in Park (A/T) / Neutral
(M/T), begin the “2000rpm Test” by
increasing and maintaining engine speed
between 1,900-2,100 (2.4L) or 1,9002,200 (2.0T) RPM until all three (3)
measurements are complete.
17. When the “2000rpm Test” is complete,
release the accelerator pedal so that
engine maintains idle state for the “Idle
Test”.
18. The “Idle Test” will automatically begin.
Keep the engine at idle and wait until all
three (3) measurements are complete.

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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

19. After the completion of the engine noise
inspection, the KDS will automatically
generate/display a “PASS” or “NO
PASS” result.




If the inspection result is “PASS”,
proceed to the KS Extension Harness
Installation procedure on page 12.
If the inspection result is “NO PASS,”
proceed to the engine replacement
procedure on page 17.
If the inspection result is “RETEST”
with an error code, see Adapter Error
Code chart in Appendix 3 on page 35
for corrective action then repeat the
inspection procedure starting from
step 9.

20. Select “Finish” to complete the engine
noise inspection. Ensure the KDS is
connected to the internet and the
“Special Inspection” KDS application is
open to automatically submit the results
to the Kia Server. To save and/or print
the results as PDF, select “Print”.
If the KDS is not connected to the
internet, up to five (5) results will stay
pending in the queue until the KDS is
connected to the internet with the
“Special Inspection” application open.
Note: The five (5) pending results
must be submitted before a sixth (6th)
test can be conducted.

21. Disconnect the engine noise tester from the KDS and carefully remove the adapter (B)
from the dipstick tube by grasping the engine noise tester adapter.

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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

KS Extension Harness Installation Procedure:
NOTE: Photos below are from a 15MY Optima (QF). Components and their location may vary in different models.

1.

Inspect the ECU harness (A) and verify if
the Knock Sensor wiring extension
harness (B) has previously been
installed.

A
B

NOTE: To identify the extension harness
(B), look for an external harness (B)
which should be cable-tied to the existing
wiring harness (A) leading by the intake
manifold (C) to the knock sensor (D), as
shown.



2.

If the extension harness (B) has been
installed, open a Techline case
online.
If the extension harness (B) has not
been installed, proceed to the next
step.

Remove the
assembly (E).

air

cleaner

and

C

D

duct

E

3.

Disconnect the ECU connector* (figure
F1 or F2) (*see IMPORTANT note
below).

 IMPORTANT
Location of the ECU connector
may vary from model to model.
Refer to the table on page 13 for
the ECU connector number and
the applicable ETM Manual on
KGIS for the location of the ECU
connector.

TSB: PI1803W/X (Rev 5) Multiple Models November 2018

F1

F2

Page 13 of 35
SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)
MY

4.

Model

Engine

ECU Connector Number

2011-2013

TF

2.4
2.0T

CHG-BG
CHTG-BG

2014

QF

2011-2013
2012-2013
2014

SL

2.4
2.0T
2.0T

XMa

2.4

C200-B
C100-B
CHTG-BG
CHGG-B
C300-B

Cut the existing cable-tie (G) from the
connector.

G

5.

Remove the ECU connector cover (H) by
carefully unclipping the two (2) tabs (I)
and sliding the cover (H) towards the
tabs (I).

H

I
6.

Carefully remove the electrical tape (J) to
expose the harness wires.

J

7.

Remove the pin retainer (K).

K

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SUBJECT:

8.

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

Locate the three (3) knock sensor circuit
terminals from the ECU connector. Refer
to the “Schematic Diagrams → Engine
Electrical System → Engine Control
System → Schematic Diagrams” chapter
of the applicable ETM on KGIS.
44. Knock Sensor Shielded Ground
45. Knock Sensor Ground
62. Knock Sensor Interface (Signal)

QF /
TF

XMa /
SL

Click here to see a video of
terminal removal.
9.

Remove the three (3) terminals one at a
time and insert the new terminals of the
extension harness into the ECU
connector (F). Reinstall pin retainer (K)
and reassemble the connector (F).

F

Pin
Extension Wire Color
44
Blue
45
Black
62
Red
NOTE: Be sure to note the rotational
position of the terminals during
removal. They are directional and need
to be reinstalled in the same “clock”
position.

10. Route the extension harness (B) along
the existing harness (A) leading by the
intake manifold (C) to the knock sensor
(D), exactly as shown.

B

 IMPORTANT
The harness (B) must be routed
exactly as shown to prevent
related DTCs.

C
D

 IMPORTANT
The harness (B) must be routed
above and secured to the
harness protector (L1) and
UNDER the Breather Hose (L2)
and Camshaft Position Sensor
(L3).

L1
L3
L2

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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

11. Connect the extension harness (B) to the
knock sensor (D).

D
B

12. Cut off and discard the three (3) old knock sensor circuit terminals and the old knock
sensor connector and secure the remaining wires to the new extension harness using the
supplied electrical tape. NOTE: Complete removal of the old knock sensor wires is not
necessary. Only remove the old terminals and connector.
13. Secure the extension harness at the
connector (F) by replacing the cable-tie
(G) removed in step 4 with a new
supplied cable-tie and the electrical tape
(J) removed in step 6 with new supplied
electrical tape.

G
F

J

14. Secure the extension harness (B) to the
existing harness (A) using the supplied
cable-ties. Tuck and secure any excess
wiring of the extension harness near the
ECU with cable-tie.

A
B

B

A
15. Reinstall all removed components in the reverse order of removal.
16. Erase the P1326 DTC with the KDS and start the engine to confirm proper operation.

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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

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 notes below.
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.
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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

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 high
pressure fuel pipe flare nuts.

B

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SUBJECT:

ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X)

Delivery Pipe:
 Refer to TSB ENG083 for special
attention and handling procedures of
GDI-specific components.
 Prior to installing the delivery pipe, be
sure to replace all of the injector Orings and injector retainers.
 Prior to installing the delivery pipe,
apply engine oil to the injector Orings.
 When installing the delivery pipe, use
caution not to damage the tip of the
injector.
 Be sure to replace the delivery pipe
retaining bolts and torque them in the
sequence shown.
Tightening torque of bolts:
13.7 – 17.4 lb.ft (18.6 – 23.5 N.m,
1.9 – 2.4 kgf.m)

32

22

1

 NOTICE