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2000 Toyota 4Runner 2.7L MIL Lamp on
Posted to Asian Driveability on 12/15/2016 10 Replies

This vehicle has a P0420 cat efficiency code it also has two cats rear o2 is behind both. Just looking for anyone who's dealt with this and how they addressed it. Replace one over the other? Replace both or is there a way to verify which one is the issue? Than...

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  Related Documents & Media  2000 Toyota 4Runner

 
Message Closed w/FIX

car Vehicle Data

2000 Toyota 4Runner

VIN JT3GM84R3Y
Engine2.7 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

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

car Vehicle Data

2000 Toyota 4Runner

VIN JT3GM84R3Y
Engine2.7 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)