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2005 Buick Rendezvous CXL 3.4L MIL Lamp on
Posted to GM Driveability on 1/14/2015 20 Replies

Hello all, I have this pesky Buick rendevous that keeps setting the infamous P0420. We had this vehicle in before and I had replaced the cat converter (only has one, shared with both banks)Rear HO2S mirrors primary sensor just like it did before. It was fine a...

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  Related Documents & Media  2005 Buick Rendezvous CXL

 
Message Closed w/FIX

car Vehicle Data

2005 Buick Rendezvous CXL

VIN 3G5DB03E45
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

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

car Vehicle Data

2005 Buick Rendezvous CXL

VIN 3G5DB03E45
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)