1994 Honda Accord

1994 Honda Accord Automatic

I recently had a tune up for my car. The spark plugs keep popping out. I took them to my mechanic and he made sure they were tight. They stayed in for a few days and then began to come back out. I purchased new ones, they have been doing the same thing. So I took it back to my mechanic and he told me to put some fuel injections in. I haven't done that yet. I would like to know if this is going to work first. I get tired of these spark plugs coming out and when I get to a stop light or stop sign the car cuts off because one is all the way out.