Majindan
New member
I'm sure it is but please confirm my truck has California emissions system. https://imgur.com/s4CGVeV. If the O2 sensor I'm putting on tonight doesn't clear my P0420 code I'll have to buy a new rear Cali CAT. Thanks
CA emissions verification pls
- Thread starter Majindan
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Majindan
New member
My truck is an '02 and I think all post 00' Runners have two cats?
Frost4runner
New member
If you have Stainless manifolds its California emissions.
Sent from my XT1093 using Tapatalk
Sent from my XT1093 using Tapatalk
gamefreakgc
Elite Member
You have an "A/F S" or Air/fuel sensor, only california models have those I believe.
phattyduck
Elite Member
2001/2002 all have the same emissions system (notice it says 'Federal' and 'California' on your sticker).
If you don't have to do a full CARB-style emissions test, just get any old cat that is the right size in there and that will fix the CEL.
-Charlie
If you don't have to do a full CARB-style emissions test, just get any old cat that is the right size in there and that will fix the CEL.
-Charlie
Majindan
New member
Update: got my Denso rear O2 in this evening and installed. The Bosche I took out was cashed. I reset CEL and using Torque show catalyst test already completed after a 20 min drive and no more codes. Success. Stainless headers in CA trucks? Is this good or bad and what are non CA headers made of?
TheDurk
Elite Member
I don't know if it is good or bad but the Cali pre-cats will only bolt up to the Cali. headers.
On the label, see where it says TWC(2) underneath Engine Family? That tells you there are two cats. TWC = Three-Way Converter
