Fuel Injection

Does anyone know anything about fuel injection? My car is having issues.

Capital

I have thought of a great money making scheme, unfortunately I need capital. The gist is to buy things on Ebay in bulk and then sell them on Ebay separately, hopefully for a large profit. The cheaper the things in the first place the greater the potential profit.

So if anyone has any suggestions of more items to buy/sell, I am currently favouring Dvds, then let me know.