[MENTION=117708]blackoutt[/MENTION] [MENTION=117203]Drift Monkey[/MENTION]
Swear this 0420 code is a yearly occurrence and only happens right before registration.
I'm running the OLD URD Rear O2 Simulator, 2UZ-FE V8, 2005-2006, Dual Channel (O2 Sim Type E) that was on backorder for a while. The same link posted by [MENTION=117203]Drift Monkey[/MENTION] - thanks for that by the way. It was installed February 2016 when the headers were put in.
After desperation settled in; reached out to URD asking for guidance. Come to find out, there is a newer "Universal Simulator" they sell. But now I cant find it on their site! Below is correspondence from URD last year on the matter.
Also found this as a potential solution. Not sure what a mini cat is or if it could possibly replace the simulator altogether. Tagging [MENTION=122163]duffdog[/MENTION] for this
I no longer manufacture the mini-cat. Too many people were using it inappropriately and I no longer wish to get complaints about how it doesn't work with blown engines, bad exhaust installs, etc. The original function was for passing smog in CA where there is no other possible solution to get your truck smogged. Other uses are not recommended for the mini-cat.