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Service bulletin TSB-13-15-001

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10173901
Published by NHTSA2020-04-24
Manufacturer's numberTSB-13-15-001
Manufacturer's date2013-12-19
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Due to variations in production, certain exhaust manifold mounted catalytic converters may experience catalyst layer separation on affected vehicles. If this occurs, the MIL will illuminate with DTC P0421 or P0431, "Warm Up Catalyst Efficiency Below Threshold" stored in the PCM. Mitsubishi Motors North America, Inc. is extending the catalytic converter warranty only on affected vehicles currently registered in certain states from 8 years / 80,000 miles to 10 years / 120,000 miles.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Trouble codes named

P0421, P0431

Vehicles listed
MITSUBISHI ECLIPSE2006, 2007, 2008
MITSUBISHI ECLIPSE SPYDER2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
MITSUBISHI GALANT2006, 2007, 2008

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
TT2012020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TT1992020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TT1982020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TT1962020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TT1912020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TT2182020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TT2172020-01-24. Service bulletin. This is a service newsletter (Tech Talk) that was sent out to dealers.
TSB-13-15-0012014-02-12. Service bulletin. MITSUBISHI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN EXHAUST MANIFOLD MOUNTED CATALYTIC CONVERTERS WILL EXPERIENCE CATALYST LAYER SEPARATION DUE TO PRODUCTION VARIATIONS AND WILL CAUSE MALFUNCTION INDICATOR LAMP (MIL) TO ILLUMINATE. MODEL 2006-2008 GALANT, ECLIPSE, ECLIPSE SPYDER. *PE
06130052006-05-16. Service bulletin. FREEZE-FRAME DATA FOR MISFIRE CONDITIONS. *TT
06130072006-05-16. Service bulletin. INCORRECT SOFTWARE PARAMETERS IN THE PCM MAY CAUSE THE MIL TO ILLUMINATE AND DIAGNOSTIC TROUBLE CODE P0134 AND/OR P0154 (HEATED OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED) TO SET IN THE PCM DURING ENGINE WARM-UP. PCM REPROGRAMMING FOR DTC P0134 / P0154. *TT