Yeah, I'm putting more miles on it every day. I think that that will improve the smog numbers. I am also going to look into O2 sensor replacement, possible cat, and check my EGR valve. I bought the regulator part of the EGR several years back. I it was just a plug in part (attach vacuum tubes). I need to inspect it further though because from the diagrams, and what I am reading there could be an issue there. Looks like it bolts onto the back of the intake plenum.
The O2 sensor could be bad its a aftermarket one, and its been on there for several years. The #2 cylinder was low compression before the rebuild, burning oil, so the cat is probably spent. I would like to trace the issue, and take care of it further upstream in the emissions system before applying a bandaid in the form of a new cat.
There are some really good posts about smog on this forum. Hey at least I know that a lot of Toyota's out there are also having a hard time passing smog. I have only street legal modifications done to my truck. LCE headers with a eo carb #, and a flow master muffler. I am running BFG 32s. All this can contribute to slightly higher values, but I have passed smog with all of these parts in the past. If all else fails I have heard that methanol in the gas tank works.
