URGENT toyota tacoma trouble code P0420 -Catalyst System Efficiency below Threshold.
#1
URGENT toyota tacoma trouble code P0420 -Catalyst System Efficiency below Threshold.
Hi
I'm getting a code P420 Catalyst System Efficiency below Threshold- on a 2001 Toyota Tacoma V6 3400cc. What should I do ?URGENT-PLEASE REPLY TONIGHT THANKS.
I'm getting a code P420 Catalyst System Efficiency below Threshold- on a 2001 Toyota Tacoma V6 3400cc. What should I do ?URGENT-PLEASE REPLY TONIGHT THANKS.
#2
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If I were you I would hurry up and replace the catalytic convertor.Then when things were less urgent I would find out why it failed.Since I read some of your other posts you already know why.
#4
Pull the battery to rest the learned fuel trim values.
Then I would just drive it based on you previous A/F sensor problem the cat may have become "dirty". The check lite may or may not set, clear it once if it does and see what happens.
You may be able to "clean" the cat with a properly running engine
Then I would just drive it based on you previous A/F sensor problem the cat may have become "dirty". The check lite may or may not set, clear it once if it does and see what happens.
You may be able to "clean" the cat with a properly running engine