[scatgo]

My 2002 with 89000 miles on it started to run rough about a month ago.
I changed the plugs and wires but still have the same problem. Used a gas treatment twice but nada. The funny thing is NO CODES!?! I had a Nissan that picked up a misfire on one cylinder that I didn't even know about but my PT idles like crap and the PCM wont give a hint as to what the problem is. So what might be cause the idle problem and whats up with the PCM?

Thanks for any help.