The P0300 came back after about a month. I read all the posts and went out today to lift the bonnet. The clamps on both ends of the air pipe from the air cleaner to the TB were loose, I mean, really loose. The clamps on the air cleaner box were all unclipped. I took the pipe off and looked in the throttle body - filthy. Started her up and sprayed in some carb cleaner. She spit a little, gave a big sigh, and started running right. I put the pipe back on, tightened everything, clipped on the cover and sprayed the outside of the TB. She jerked a little, then cleared up. Pulled the battery cable to clear the code and then took her out. She runs like new. She's always been quick, but now she's extra quick, especially for an 18 year old vehicle. Put on about 25 miles, not a blip. I think I got off easy!
