Thank you. The intake manifold is not plastic... but I like your idea and will spray around the hoses and manifold.. I'll let you know.
no problem, i had a dodge neon do the exact same thing as your stealth is doing and the manifold, which happened to be plastic was cracked.
Another thing to consider... yesterday I failed emissions big time. Now, the idle problem has been going on for more than a year. In other words, last year I passed emissions with flying colors while the idle problem was still occuring. This year, High Speed HC registered 827 and idle HC was 415. Not sure these are related.. but if we're talking about potential air flow sensor... maybe that's related?? Where is the Air flow sensor?
Nope. Two days ... same results. No good. I'm at a lose.
does it still idle normal with the air duct off?
Yes. In fact, now I've determined that it will idle normal if I put the air duct back on and unplug the air flow sensor connector. I took that box out, replaced the air filter and used some air sensor cleaner on the gridwork... it looked very clean when I started and still did when I reinstalled. It didn't help. As soon as I plug it in, the engine idle increases again. It must be sending signal because it definately doesn't run right with it off.... it idles ok but stumbles and misses when you rev it up... also check engine comes on .. Checked on a replacement just for the heck of it.. 330 bucks from checker.. I wouldn't want to do that unless I could test this one and determine it was bad for sure.. Any ideas?