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2005 Subaru Impreza WRX 2.0L MIL Lamp on
Posted to Asian Driveability on 4/2/2009 9 Replies

replace cat with factory for po420,code returned in less than 1000 miles-i suspect the front air fuel ratio sensor may be the problem-but cant find a spec for its output voltage, thanks for your help.

9 Replies Received (View Replies)

  Related Documents & Media  2005 Subaru Impreza WRX

 
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car Vehicle Data

2005 Subaru Impreza WRX

VIN JF4GG22645
Engine2.0 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed

car Vehicle Data

2005 Subaru Impreza WRX

VIN JF4GG22645
Engine2.0 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)