i went to this web site http://www.2gnt.com/www/files/pcmcode.htm that stated i could check my cel by turning my ingition a couple of times and counting the light flashes, and i counted 1 and a 2 which in turn is 12 same for 64 and then 55 which is the end of the reading it said. there was a pause between each number. also it said that 12 was this: "direct power input to the PCM has been disconnected within the last 50 key-on cycles" what the hell does that mean and also 64 means this: "Catalytic converter efficiency failure" it also told me to check the Exhaust manifold for cracks / Replace catalytic converter does all this sound right.i also went to autozone and they told me that i had a obd I connector and that they would have to go under my hood to check it but couldn't cause it was raining.thats why i did it my self with the key.please help

Sounds like you did it right.

12 is a nothing code, it's almost always on, ignore it. 64 almost always means for cat is dyning/dead - replace it and it'll go away. 55 is just end of codes..

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Well the car should have an obd2 interface as well but obd2 tools can still read it regardless. But anyways it sounds like you have a bad cat or something. 12 and 55 always appear with the keydance those are kind of like starting/stopping codes.

I edited to the wiki!

ok also i can reset the code and it go away for a week but later comes back on that was before i check it today would that call for a new cat and also how would i know with out going to a shop that my cat is going bad it doesn't smell like rotten eggs or anything it smells like oil burning out the exhaust,but no smoke, saying i did it right should i still have someone use the obd tool to make sure or should i replace the cat and also i priced out some OE cats and they are like 175 but a high flow is 60-100 which should i do i don't want it to be all loud and shit.

Go with the high flow that won't make your stock exaust much, if any, louder. Yes the cat must be going bad. I guess it "could" be your o2 sensor but I doubt it because it has it's own code. If you smell any smell at all I would go ahead and replace it. Just have the mechanic check it before he installs the new one and take it to someone you trust. But also do a comp check to see if you are burning oil due to pistons.

I edited to the wiki!

12 is not a start code....its like "pcm has been disconnected in the last 50 key turns", no biggie at all

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Yeah, it's a nothing code.

it doesn't trigger a CEL, and it's there 99% of the time when you check it.

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