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2001 Toyota Tundra 3.4L MIL Lamp on
Posted to Asian Driveability on 1/29/2008 10 Replies

After running a while the Data for the o2 sensors is backwards. the rear sensor switches moderately while the front sensor stays fairly constant. I unplug the rear sensor and voltage goes to 0, but when I unplug the front sensor the voltage goes to .05 to .10 ...

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  Related Documents & Media  2001 Toyota Tundra

 
Message Closed w/Summary

car Vehicle Data

2001 Toyota Tundra

VIN 5TBJN32141
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable

Trouble Codes

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

car Vehicle Data

2001 Toyota Tundra

VIN 5TBJN32141
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)