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2002 Subaru Outback 2.5L MIL Lamp on
Posted to Asian Driveability on 1/8/2010 19 Replies

PO420 returns after driving vehicle approx 100 miles. Downsteam o2 voltage fluctuates indicating cat not working. No exhaust leaks or other codes,datastream looks normal

19 Replies Received (View Replies)

  Related Documents & Media  2002 Subaru Outback

 
Message Closed w/FIX

car Vehicle Data

2002 Subaru Outback

VIN 4S3BH67562
Engine2.5 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter Drive Cycle

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

2002 Subaru Outback

VIN 4S3BH67562
Engine2.5 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter Drive Cycle

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)