i actually just moved to arizona from cali about 6 months ago and winter was the best time and none of my previous trucks were "sleeping" in the winter, im from the mountains where we get about 3-4 ft of snow in the winter. 3-4 ft of snow= FUN!!!

 

be sure and unplug your o2 sensors and check the shape of the plug before you buy new ones. some are square and some are round. otherwise it really pisses you off when you get the wrong one and have to cut/splice them. there's nothing wrong with cutting and splicing, plus the universals are a little cheaper. its just a pisser to spend the extra money for the direct fit and then at the last minute - find out that your ordered the wrong one... ARRH.

it would be nice to have a california version with 4 o2's. then you could run true duals with o2's on both sides and no X/H pipe.

 

It will. Cat efficiency codes take a little while, even with a completely failed cat. if they're just borderline, it could take weeks or even months to set the code again.

The good news is, whether it's a failed cat (my bet) or a failed cat monitor, it will not affect your driveability whatsoever. The bad news is 1) you may fail emissions testing and 2) having the MIL on for that means you won't be alerted to other problems and would have to check for new codes regularly.

 

i dont have to smog my truck where i live, and im going to fix the problem when i can get some money together but its good to know that i can still drive it till i come up with the money, kinda wondering i i shouldnt get new sensors and cat until plenum is fixed because i dont want it to mess up the new sensors and cat

 

Your right, fix the plenum first. Or at the same time. If it's blown the cat and o2 will immediately start getting ruined again.

 

I am also getting a code, forget the number but its air injection, bank 2. It just passed emission testing. What are the odds of it being the classic plenum problem?
I don't seem to be burning oil, although haven't drove it more than 300 miles or so.
My truck only has 90000 miles, so anticipating the plenum fix in the near future.
Should I do the fix anyway and prevent any future problems?

 

I changed my O2 sensors and used Denso. They work well.

When you do the plenum, do the water pump and timing set (double roller) while you are down that far into it.

And DO NOT throw away the old cat! Google "scrap Catalytic Converter." There are places that pay good money for these to recycle them! Look for one that pays shipping costs. I got $130 for one from my Yota!