Engine Clicking And Tapping Noises problems of the 2007 Lexus IS

Takata recall. I bought my car only two years ago after my first Lexus lasted me upwards of 350,000 miles. Keeping this in mind I found my 2007 Is250. I was aware after buying the car (but 2 days outside of my dealership warranty *fishy*) about the passenger air bag recall. The dashboard situation Is harsh. There Is a very chemical smell coming from my dashboard, it feels and peels off like the foam under it. It gets ripped and torn to shreds from very little friction. I have read that some people became very congested and ill from this smell. It Is very pungent. Now for my engine, this Is a big one. As I was driving, my car starts to make a loud but hallow clunking noise. For a long time I thought it was my brakes, so when I got them changed it went away, for a little. Now today as I was driving my car (which Is an automatic) completely stalled in head on traffic. Lucky me, ive driven many manual cars so I knew what to do. When I turned my car back on, it held idle at 4000 rpm. While going 20 mph it holds at 5-6000 rpm. As well as my miles per gallon/tank drop dramatically. While the car Is in idle in my driveway, it shakes like a freezing baby throwing a temper tantrum.