14 people reported this problem
CEL - Error Code 420: Catalytic Converter on Scion tC
6 people shared problem details
2005 Scion tC90,000Visitor
Check Engine light came on while I was driving.. got a scan tool, it read "P0420" - Catalyst Efficiency Below Threshold (Bank 1) Considering I don't have an extra leg to sacrifice for a new converter.. I "Erased" the code with my scantool.. Boy.. THAT was easy! lol.
2005 Scion tC80,000Visitor
warning light is on....my scion tc is difficult to start...any ideas
2006 Scion tC98,000Visitor
Plan on replacing my cats soon
2005 Scion tC175,000Visitor
p0420 not sure what i am going to do
2005 Scion tC78,000Visitor
Replaced catalytic convertor under warranty
Check Engine Light Illuminated Problem: Diagnostic Showed Error Code 420: "Catalytic Converter Efficiency Below Threshold (Bank 1) Solution: Free Replacement by Dealer Under California 7yr/70k or Federal 8yr/80k Warranty Covering Emissions Parts
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