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2000 Buick LeSabre Custom 3.8L P0420
Posted to GM Driveability on 1/30/2008 29 Replies

vehicle originally came with no power and check engine light on. replaced catalytic converter because it was plugged. replaced o2 sensors because slow reaction, ran on the rich side. returned a couple times for dieing problem replaced crank sensor. came back a...

29 Replies Received (View Replies)

  Related Documents & Media  2000 Buick LeSabre Custom

 
Message Closed w/FIX

car Vehicle Data

2000 Buick LeSabre Custom

VIN 1G4HR54KIY
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsP0420

Trouble Codes

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

car Vehicle Data

2000 Buick LeSabre Custom

VIN 1G4HR54KIY
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsP0420

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)