Yes that used car should pass smog inspection.
There could be many reasons why your car will not pass the smog check in your state. The inspection center should have given you a code as to why the car failed.
the opdomiter does not work, will it pass smog? opdomiter, not sure what that is. Please define.
yes
What do you mean smog a car? If car is sold "as is", buyer is responsible for all mandatory smog control equipment. If you mean pass a smog inspection, there are none in Iowa.
Yes that used car should pass smog inspection.
You certainly can trade your car in even if it won't pass a smog check. Some people will even let you trade cars that don't run.
It depends on where you live. In California you will not
The answer to this question is fairly complex. We recommend you visit the link below to find out how to pass the smog check and what might cause your vehicle to fail... http://www.smogtips.com/passing_inspection.cfm
The cost to repair a timing problem so the car will pass a smog test varies from car make, car model and shop. It could cost somewhere between $60 and $200+ depending on part and labor costs.
they cannot be sued because they are not responsible for it after they sold it
No, the vehicle cannot have any current trouble codes.