Well I just bought a 93 Accord SE 2.2 automatic Coupe yesterday and encountered some problems. Well the previous owner replaced the alternator and timing belt less than 20k ago, btw the current mileage is 102k. But when I start up the idle is sort of low. The car runs and drives fine but I was wondering if I should be at all concerned with this. When I turn the wheel the RPMs drop significantly, as well as when I open/close the moonroof/windows. Also when I go into reverse the idle is about the same and the car shakes a bit.

What might cause these problems and how would I go about fixing them?

Thanks.

 

I would do some basic maintenance.

I would do a tune up, if you are not sure when they were done last. Spark plugs, distributor cap, and rotor.

Pull off intake hose and clean both sides of the throttle plate and the bore. Maybe clean the IAC with throttle body cleaner. It is bolted to the firewall side of the throttle body. There is a screen that can get plugged up with carbon deposits.

Have the battery/alternator checked at a place like autozone or o'reillys.