My 02 Taco just ran out of its factory warranty period and my check engine light came on. I plugged an OBDII reader and it gave a code of P0420 Catalyst System Efficiency Below Threshold (Bank 1). WTF the warranty is out and now I am stumped why the CAT would start screwing up now. I erased the code and now the check engine light is back on. Does anyone have a CAT they want to sell or how can I unplug the sensor for that error code? Or does anyone know what I should do now?

 

You have an emissions system warranty until 80K miles.....

 

Yep, and if for some reason that doesn't pan out for you, no worries. An aftermarket high flow cat will run you about $100 +install.

Let us know what the dealer says.

 

it should pan out for you....the emmision warrenty is 8yr/80k miles...whichever comes first....of course I guess if you have major engine mods they could try something to make you pay for it....

 

Where can I get a high flow cat from and will it affect the computers sensor readings?

 

Well, if your cat is truly bad, then get a new Toyota one under warranty. If Toyota will not cover it for whatever reason, and that is the problem, then get a Carsound cat off ebay.

You really should push this with the dealer though...unless you have a mod that would directly affect the malfunction. But, judging by your sig, you don't.

A Carsound cat will operate with your computer.

 

Call Toney's Muffler Shop in Richmond at 804-231-6063. I had them do my 99 4runner. Former President of Local F-173