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2001 Mitsubishi Montero Sport ES 3.0L MIL Lamp on
Posted to Asian Driveability on 11/1/2007 5 Replies

owner has been driving with the mil light on since 2003, and has replaced cat converter in 04 and pcm in 03. we replaced rear o2 sensor in 04. sensors appear to be operating normally, rich/lean on the front and relatively "flat-line" on the rear o2 sensor.

ow...

5 Replies Received (View Replies)

  Related Documents & Media  2001 Mitsubishi Montero Sport ES

 
Message Closed w/FIX

car Vehicle Data

2001 Mitsubishi Montero Sport ES

VIN JA4LS2AH61
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
Message Closed w/FIX

car Vehicle Data

2001 Mitsubishi Montero Sport ES

VIN JA4LS2AH61
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)