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2000 Toyota 4Runner Limited 3.4L MIL Lamp on
Posted to Asian Driveability on 3/7/2013 26 Replies

Thanks ahead for any help with this one guys.

Vehicle came in failing smog test p0420. I scanned and noted a/f sensor steady at 3.28v to 3.34v o2 sensor fluctuating between .2v and .8v . stft 0 ltft +6 replaced both converters aftermarket magnaflow.

both exh...

26 Replies Received (View Replies)

  Related Documents & Media  2000 Toyota 4Runner Limited

 
Message Closed w/FIX

car Vehicle Data

2000 Toyota 4Runner Limited

VIN JT3GN87R2Y
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

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

car Vehicle Data

2000 Toyota 4Runner Limited

VIN JT3GN87R2Y
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)