Service Bulletin

13-080

December 20, 2018

Version 10

Warranty Extension: MIL Comes On With DTCs P0301 thru P0304
Supersedes 13-080, dated June 13, 2018, to revise the information highlighted in yellow.
AFFECTED VEHICLES
Year

Model

Trim

VIN Range

2008-10

Odyssey

EX-L, Touring

Check the iN VIN status for eligibility.

REVISION SUMMARY
The cylinder bore inspection procedure included in the REPAIR PROCEDURE was updated because there is now a
special tool available to check for scratches.
CORRECTIVE ACTION
Complete the diagnosis procedure and if necessary, update the PCM software and replace the affected spark plugs. If
the vehicle returns after the updated PCM software and spark plug replacement have been installed, clean pistons and
replace the piston rings along with the spark plugs (Procedure B).
NOTE
Make sure the software update has been completed, spark plugs replaced (Procedure A), and the vehicle returned to
the customer before making any additional repairs. Failure to do so will result in claim review by your DPSM and
possible debit.
BACKGROUND
American Honda is announcing a powertrain warranty extension as a result of a settlement of a class action captioned,
Soto et al.v. American Honda Motor Co., Inc., Case No. 3:12-cv-1377-SI (N.D. Cal.).
The piston rings on certain cylinders may rotate and align, which can lead to spark plug fouling. This can set DTCs
P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected,
P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
American Honda is extending the powertrain warranty to cover repairs related to engine misfire (that triggers DTCs
P0301 through P0304) to 8 years with unlimited mileage from the original date of purchase and has settled a class
action based on this remedial measure.
This warranty extension does not apply to any vehicle that has ever been declared a total loss or sold for salvage by a
financial institution or insurer, or has a branded or similar title under any state’s law.
Additionally, the following videos are available to help with this bulletin:
•

Tech2Tech How to Clean Piston Ring Grooves

•

Tech2Tech Let's Talk Spring Compressors

•

Tech2Tech "Cylinder Wall Inspection Tool" (To be released January 2019)

CUSTOMER INFORMATION:The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and
training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Honda automobile dealer.
©

2018 American Honda Motor Co., Inc. — All Rights Reserved

Page 1 of 34

CUSTOMER NOTIFICATION
Owners of affected vehicles were sent a class action settlement notice regarding this warranty extension starting in
October 2013.
Before doing work on a vehicle, verify its eligibility by doing an iN VIN status inquiry.
Refer customers seeking information about settlement benefits to www.enginemisfiresettlement.com, or instruct them to
call 888-888-3082.
DIAGNOSIS
1. Connect the HDS and check for the following DTCs: P0301 No. 1 Cylinder Misfire Detected, P0302 No. 2 Cylinder
Misfire Detected, P0303 No. 3 Cylinder Misfire Detected, P0304 No. 4 Cylinder Misfire Detected.
Are any of these DTCs stored?
YES – Go to step 2.
NO – Stop. This bulletin does not apply. Continue with normal troubleshooting.
2. Remove and check the spark plug(s) on the affected cylinders (example: if P0301 is stored, check the spark plug on
cylinder No. 1).
Are the spark plug(s) fouled?
YES – Proceed to Step 3.
NO – Stop. This bulletin does not apply. Continue with normal troubleshooting.

Page 2 of 34

3. Check the PCM software version P/N located above the PGM FI Data List.

Year/Model

Program ID (or later)

Program P/N (or later)

2008 Odyssey (EX-L, Touring)

GWA950

37805-RGW-A95

2009–10 Odyssey (EX-L, Touring)

GWA050

37805-RGW-A05

Is the PCM Program ID and/or Program P/N the same or newer than what is listed above, model years only?
NO– The PCM software needs to be updated. Go to REPAIR PROCEDURE A.
YES – The correct software is installed. The piston rings on select cylinders need to be replaced. Go to step 4.
NOTICE
The PCM software must first be updated with the correct version, replace spark plugs and the vehicle returned to
the customer. Piston cleaning and piston ring replacement, as described below, should only be done after the
customer has returned with a second failure or if the vehicle’s software is the correct version. Failure to follow this
process correctly may result in a full debit of the warranty claim to your dealer.

Page 3 of 34

4. Note which DTCs are stored in the vehicle.
Does the vehicle have DTC P0304 stored? (Any combination of DTCs P0301, P0302, P0303, P0304 may also be
stored.)
YES – Go to REPAIR PROCEDURE B for the cylinders listed, Cylinders 1–4: Clean the pistons, replace the piston
rings, and replace the spark plugs.
NO – Go to REPAIR PROCEDURE B for the cylinders listed below:
•

Cylinder 1–3: Clean the pistons and replace the piston rings.

•

Cylinder 1–4: Replace the spark plugs.

Page 4 of 34

WARRANTY CLAIM INFORMATION
PROCEDURE NOTICE: The PCM software must first be updated with the correct version, spark plugs replaced and the
vehicle returned to the customer (Procedure A). Piston cleaning and piston ring replacement along with the spark plugs
should only be done after the customer has returned with a second failure or if the vehicle’s software is the correct
version (Procedure B). Failure to follow this process correctly may result in a full debit of the warranty claim to
your dealer.
FLAT RATE NOTE: The procedure in this bulletin is different than the service manual. This procedure does not require
the complete removal of the power steering pump, catalytic converter(s), engine and transmission, or the crankshaft. As
a result, the operation number is unique and the FRT is reduced (Procedure B).
2008–10 Odyssey
Operation
Number

Description

Flat Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part Number

1171G9

2008–10 Odyssey:
Procedure A

0.5 hr

5V500

JB800

13-080A

13011–R70–A02

8.5 hrs

5V500

JB800

13011–R70–A02

0.8 hr

5V500

JB800

13011–R70–A02

Update the PCM and
replace spark plugs 1–4
(includes diagnosis).
1171H0

2008–10 Odyssey:
Procedure B
Replace piston rings 1–
3 and replace spark
plugs 1–4 (includes
diagnosis).

1171H0B

2008–10 Odyssey: Add
if replacing piston rings
on cylinder 4.

Skill Level: Repair Technician
PARTS INFORMATION
NOTE
Do the DIAGNOSIS first to determine which cylinders you will need to repair.
PARTS INFORMATION A – SOFTWARE UDPATE AND CYLINDERS 1–4 SPARK PLUG REPLACEMENT
Part Name

Part Number

Quantity

Spark Plugs

12290-R70-A01

4

PARTS INFORMATION - PISTON CLEANING AND RING REPLACEMENT
Part Name

Part Number

Cyl 1-3

Cyl 1-4

Cyl. Gasket (Fr)

12251-R70-A01

Cyl. Gasket (Rr)

12261-R70-A01

1

1

Drain Washer 14 mm

94109-14000

1

1

1

Page 5 of 34

Part Name

Part Number

Cyl 1-3

Cyl 1-4

EGR Pipe Gasket A

18716-R70-A01

1

1

EGR Pipe Gasket B

18719-R70-A01

1

1

Ex. Chamber Gasket

18115-R70-A01

1

2

Ex. Pipe Gasket

18212-SA7-003

2

2

Head Gasket Fr. (Valve Cover)

12030-R70-A00

Head Gasket Rr. (Valve Cover)

12050-R70-A00

1

1

In. Manifold Gasket (Intake Top Cover)

17146-R70-A01

1

1

In. Manifold Gasket (In. Manifold to Base)

17105-RCJ-A01

1

1

Oil Filter

15400-PLM-A02

1

1

O-ring (7.47 mm x 3.6 mm)

91301-PLC-000

2

2

O-ring (31.2 mm x 4.1 mm)

91314-PH7-003

2

2

Piston Ring Set

13011-R70-A12

3

4

Pre-chamber Gasket

18393-SDB-A00

1

1

Self-locking Nut (8 mm)

90212-RCA-A01

4

8

Self-locking Nut (10 mm)

90212–SA5-003

9

9

Spark Plug

12290-R70-A01

4

4

Strainer O-ring

15221-RYE-A01

1

1

Timing Belt Bolt

14551-RCA-A01

1

1

Water Gasket Fr.

19411-P8A-A03

1

1

Water Gasket Rr.

19412–P8A-A02

1

1

1

Replace Parts as Needed for Repair Procedure B
Part Name

Part Number

Cyl 1-3

Cyl 1-4

Connecting Rod Bolt (may require up to 2
bolts per connecting rod)

13204–P8A–A01

6

8

Washer-Bolt (12 x 163) (may require up to 90005–PAA–A01
8 bolts per cylinder head)

8

16

REQUIRED MATERIALS - REPAIR PROCEDURE B
Material Description

Part Number

Quantity

Honda Long-Life Antifreeze/Coolant Type 2

0L999–9011

3 gallons

Full Synthetic Engine Oil 0W-20 Oil

08798–9063

6 quarts

Page 6 of 34

Material Description

Part Number

Quantity

Genuine Honda Motor Oil 5W-20 (If requested 2008–10)

08798–9032

6 quarts

Hondabond HT (1 Tube Repairs 5 Vehicles)

08718–0004