D dirtycj5 New member Jan 4, 2011 #1 i have a 99 4runner. who makes a o2 simulator that works so i can remove the cat and not have any codes. i have searched and read lots of topics and they all have mixed results. my cat is hurting the power its pluged and has alot of miles thanks
i have a 99 4runner. who makes a o2 simulator that works so i can remove the cat and not have any codes. i have searched and read lots of topics and they all have mixed results. my cat is hurting the power its pluged and has alot of miles thanks
kman55 New member May 8, 2011 #2 I bought the URD o2 sim, its plug and play and works perfect. No P0420 anymore.
