15 people reported this problem
CEL - Error Code 420: Catalytic Converter on Scion tC
7 people shared problem details
2005 Scion tC175,000Visitor
p0420 not sure what i am going to do
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.
Just purchased the vehicle used from a used car dealer. 3 days later my engine light came on. Awsome car runs like a champ. No misfire no hesitations no sign of any malfunction whatsoever. Code is p0420 and im waiting for the dealer to fix this problem.
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 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
Are there multiple O2 sensors for my car? The troubleshooting area says it couple be: oxygen s...
Few years ago changed alternator n water pump 2013 replaced battery rpm go up and down not sure...
My friend works for Toyota and he was able to read the srs code using the computer. Said it was...
i replaced the speed sensor on the top of the transmission and after replacing it. i try starti...
Car won't shift properly only has 1st 3rd and 5th gears now