Technical Service Bulletin (TSB)
Fuel Injector Leak
REFERENCE:

TSB: 14-003-26
GROUP: 14 - Fuel System

Date:

March 13, 2026

REVISION: 14-009-25 REV. D

VEHICLES
AFFECTED:

2022 - **2026** (B1) Jeep Renegade
MARKET APPLICABILITY:
2022 - **2026** (H1) Jeep Commander
MEA
NA
2022 - **2026** (M1) Jeep Compass
SA
IAP
This bulletin applies to vehicles equipped with a 1.3L I4 Turbo MAIR DI
Engine w/ESS E100 (Sales Code EYJ).
EE
CH
NOTE: This bulletin applies to
the **Brazilian** market.

CUSTOMER
SYMPTOM:

Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must
exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
● **P1336-00 - Multiple Cylinder Misfire.
● P1337-00 - Cylinder 1 Misfire.
● P1338-00 - Cylinder 2 Misfire.
● P1339-00 - Cylinder 3 Misfire.
● P1340-00 - Cylinder 4 Misfire.**
● P0300-00 - Multiple Cylinder Misfire.
● P0301-00 - Cylinder 1 Misfire.
● P0302-00 - Cylinder 2 Misfire.
● P0303-00 - Cylinder 3 Misfire.
● P0304-00 - Cylinder 4 Misfire.
Customers may also comment on one or more of the following:
● Unstable idle.
● Abnormal engine noise.

CAUSE:

Manufacturing issue

This bulletin supersedes Technical Service Bulletin (TSB) 14-009-25 REV. D, date of issue December
20, 2025, which should be removed from your files. All revisions are highlighted with **asterisks**
and include updated model years, DTCs, Market Note, Repair Summary, Diagnostic section, Repair
Procedure, additional Claims Data Note, Special Tool and Reading Defects and Cleaning Procedure Of
The Injection System sections. Revisions not highlighted with asterisks include removal of the build
date and DTCs.
REPAIR SUMMARY:
**This bulletin involves diagnosing and possibly cleaning the fuel injection system with an approved product or
replacing the fuel injectors and the high pressure tube.**

M14 FSAR-TSB-7090

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CLAIMS DATA:

Labor Operation No:
14-30-20-9S

14-30-20-9T

14-30-20-9U

14-30-20-9V

Failure Code

Labor Description
Injector and High
Pressure Tube - Replace
One Injector
(0 - Introduction)
Injectors and High
Pressure Tube - Replace
Two Injectors
(0 - Introduction)
Injectors and High
Pressure Tube - Replace
Three Injectors
(0 - Introduction)
Injectors and High
Pressure Tube - Replace
Four Injectors
(0 - Introduction)
ZZ

Skill Category
1 - Engine Repair and
Performance

Labor Time
0.7 Hrs.

1 - Engine Repair and
Performance

0.7 Hrs.

1 - Engine Repair and
Performance

0.7 Hrs.

1 - Engine Repair and
Performance

0.7 Hrs.

Service Action

NOTE: **Injection system cleaning cost is not covered in this TSB.**
SPARE PARTS:

Qty
(AR)
1 (AR)

Part No.
68771508AA - Mopar
46355952 - EMEA
68440665AA - Mopar
46341585 - EMEA

Description
Fuel Injectors

Notes

Tube

(Ramp/High
Pressure Pump)

NOTE: The number of injectors to replace will vary depending on the diagnosis performed.
SPECIAL TOOLS/EQUIPMENT:

Description
wiTECH or Equivalent
**GDI Flex" Injector Cleaner
Applicator
Endoscope

Ref. No.
–
2850000486

Notes
–
–**

Código: EQ-10353143

–

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M14 FSAR-TSB-7090

**READING DEFECTS (DTC):
1. Attach the guards to the vehicle (front seats, steering wheel, gear selection lever and parking brake lever/
button.
2. Position the vehicle at the workplace.
3. Open the bonnet.
4. Fit the body guards (front fenders and front panel).
5. Insert the MicroPod interface into the vehicle's OBD connector.
6. Perform ECM defect reading.
7. Was DTC P1336 and/or P1337 and/or P1338 and/or P1339 and/or P1340 and/or P0300 and/or P0301
and/or P0302 and/or P0303 and/or P0304 registered?
● YES >>> Perform step by step.
● NO >>> Do not apply this TSB.
NOTE: Print on .PDF of the Vehicle Scan Report.
8. Has DTC P0169 also been registered?
● YES >>> Perform step by step.
● NO >>> Do not apply this TSB.
9. Has DTC P0171 also been registered?
● YES >>> Do not apply this bulletin.
● NO >>> Perform the steps in the "DIAGNOSIS" section.
NOTE: Print on .PDF of the Vehicle Scan Report.**
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/
Service Library, verify all related systems are functioning as designed. If DTCs or symptom conditions, other
than the ones listed above are present, record the issues on the repair order and repair as necessary before
proceeding further with this bulletin.
If the customer describes any of the symptoms listed above in the customer symptom section and a fuel
injector leak is verified using the Endoscope, perform the **Diagnosis Procedure**.
1.
2.
3.
4.
5.
6.

Position the vehicle at the workplace.
Open the engine hood.
Fit the bodyguards (fenders and front bumpers).
Run the motor up to the working temperature.
Connect wiTECH II to the vehicle.
Access the injection ramp pressure values in the injection control module (ECM) in graphical mode. To do
this, choose the following parameters:

M14 FSAR-TSB-7090

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● Engine speed (or engine speed).
● Fuel rail pressure (or Fuel pressure instruction on common ramp high fuel pressure).
● Desired Fuel Line Pressure (or Common Fuel Injection Chute Pressure)
● Ignition deactivation time.
7. Turn off the engine, turn on the ignition and observe the pressure values of the injection ramp for one
minute.
8. Observe if the graph read on the vehicle is as shown in the images of the examples below Fig. 1 and Fig.
2.

Fig. 1
Leak Test - KO Result

Fig. 2
Leak Test - KO Result
9. Did the leak test results according to the images in the examples above?
● YES >>> Do not apply this TSB.
● NO >>> Print or capture the image (print screen) showing the injection ramp pressure loss failure with
the parameters "Fuel rail pressure" and "Desired fuel line pressure" (for possible warranty submission)
and proceed to the next step.
10. Open the hood and place the bodyguards on the fenders and front bumper.
11. With the engine off, still at working temperature, remove the spark plugs, according to operation "5510D10
- Spark plugs - Removal and Replacement".

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M14 FSAR-TSB-7090

12. Insert the end of the videoscope handle into each of the cylinders Fig. 3.

Fig. 3
Videoscope Test
13. With the help of an employee, ask him to turn the ignition key (or start the vehicle with the start button
without pressing the brake pedal) without starting the engine.
NOTE: Do not start the engine during the leak test of the injectors with the videoscope.
14. Keep contact on one minute per injector.
15. Check for fuel leakage through one of the injectors.
NOTE: Repeat these steps with the videoscope on all injectors.
16. Below are two examples illustrating an OK injector (Compliant, no leaks) and KO injector (non-compliant,
leaking) Fig. 4 and Fig. 5.

Fig. 4
OK Injector - No leakage

M14 FSAR-TSB-7090

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Fig. 5
Injector KO - Leaking
17. Was a leak found through the tip of any of the injectors Fig. 5?
● YES >>> Carry out the REPAIR PROCEDURE.
● NO >>> Perform the INJECTION SYSTEM CLEANING PROCEDURE.**
**CLEANING PROCEDURE OF THE INJECTION SYSTEM:
1.
2.
3.
4.
5.

Open the hood of the vehicle.
Fit the bodyguards (front fenders and front panel).
Open the fuse box cover in the engine compartment.
Remove the F009 fuse from the fuel pump.
Start the engine and keep it running until it stops running due to lack of fuel. Repeat this procedure
described above three times to ensure that the fuel supply line is completely depressurized.
6. Replace the F009 fuse on the fuel pump.
7. Close the fuse box cover in the engine compartment.
8. Remove the complete air filter.
9. Disconnect the fuel inlet quickly coupling at the high-pressure fuel pump and insert a plug to ensure the
pipe seals.
10. Prepare the "IT200E - GDI Flex Injector Cleaner Applicator" kit (PN: 2850000486), according to your
equipment user manual.
11. Insert the quick coupling of the tool "IT200E - GDI Flex Injector Cleaner Applicator" (PN: 2850000486) into
the inlet of the high-pressure fuel pump.
12. Pour the additive "Isotech 012 GDI Injector Cleaner" (PN: 2850000479) into the cylinder of the tool "IT200E
- GDI Flex Injector Cleaner Applicator" (PN: 2850000486).
13. Pressurize the "IT200E - GDI Flex Injector Cleaner Applicator" kit (PN: 2850000486), according to your
equipment user manual.
14. Start the engine.
15. Run the vehicle at idle speed until the product is finished when the engine turns off by itself.
16. Disconnect the equipment from the vehicle's power system.
17. Reconnect the quick fuel inlet coupling to the high-pressure fuel pump.
18. Reassembly the complete air filter.
19. Delete the DTCs recorded in the ECM control panel's memory with wiTECH.
20. Perform injector learning with Witech.
21. Start the engine and keep the engine running.
22. Remove the bodyguards on the front fenders and bumpers.
23. Close the hood of the vehicle.
24. Remove the vehicle at the workplace.
25. Release the vehicle for delivery to the customer.**

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M14 FSAR-TSB-7090

REPAIR PROCEDURE:
1. **Replace the fuel injector(s) as required if defective and the fuel tube (rail / high pressure pump).
Refer to the detailed service procedures available in DealerCONNECT/Service Library under: Service
Info> 1056F60 - Tubo Coletor de Combustível Único - Completo de Eletroinjetor Remoção/Recolocação.
NOTE: ● If only one injector is defective, replace one injector and the fuel tube (rail / high
pressure pump).
● If two injectors are defective, replace only the two defective injectors and the fuel tube
(rail / high pressure pump).
● If three or all four injectors are defective, replace all four defective injectors and the fuel
tube (rail / high pressure pump).
2. Delete the DTCs recorded in the ECM control panel's memory with wiTECH.
3. Perform injector learning with wiTECH.

4.
5.
6.
7.
8.

CAUTION!
Learning the injectors with wiTECH is essential after replacing the injectors, at the risk of
generating DTC P0171 and/or P0172.
Start the engine and keep the engine running.
Remove the bodyguards on the front fenders and bumpers.
Close the hood of the vehicle.
Remove the vehicle at the workplace.
Release the vehicle for delivery to the customer.
IMPORTANT! When the need to replace a fuel injector is verified, it is necessary to attach the
Vehicle Verification Report (Scan Report) generated by wiTECH (containing the DTCs
stored in the memory of the ECM center) in the SCP system and the screenshots or
PDF printouts of the screen demonstrating the failure before replacement for said
Warranty Claim (SG). The chassis and data regarding the vehicle must be properly
entered into wiTECH so that it can be correctly identified. If this does not occur, the
Warranty Request (SG) may be reversed. For more information, please refer to the
current Warranty Manual and Stellantis Practical Information.**

NOTE: After applying this TSB, it is not necessary to send DID-I or DID-A.
POLICY:
Reimbursable within the provisions of the warranty.
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.