PO420 CAT efficency below threshold B1

2005 Toyota Avensis 1.6 Petrol Aura
Car: Toyota Avensis
Year: 2005
Variant: 1.6 Petrol Aura
Has anyone a fix for this problem without changing the CAT. I can reset / clear the code but it returns after 30kms. No other codes are stored or present. The Car is driving fine.
Problem added: Oct 15, 2013 (10 years ago)
Wh. Thanks for that suggestion. I have now put the Cataclean in the Avensis - run it for the suggested distance - switched off the EML and it has now come back on again.No faults stored apart from the P0420. Any further suggestions.

Is Scotty Kilmers suggestion worth trying?

http://www.youtube.com/watch?v=5icTmYItwiE&feature=player_detailpage#t=0

http://www.youtube.com/watch?v=5icTmYItwiE&feature=player_detailpage
Answered Oct 21, 2013 (10 years ago)
Wh. Thanks for that suggestion. I have now put the Cataclean in the Avensis - run it for the suggested distance - switched off the EML and it has now come back on again.No faults stored apart from the P0420. Any further suggestions.

Is Scotty Kilmers suggestion worth trying?

http://www.youtube.com/watch?v=5icTmYItwiE&feature=player_detailpage#t=0

http://www.youtube.com/watch?v=5icTmYItwiE&feature=player_detailpage


Answered Oct 21, 2013 (10 years ago)

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