98 camry starting problems on cold days

98 Camry with 143k miles runs fine except that it gives hard time to start on cold days. Today when i called the AAA he mentioned that nothing is wrong with battery etc and he press the accelerator when starting the car and it finally starts in 30 sec and he mentioned that i need to add some fuel injector. I will do that but still am not sure howcome fuel issues only comes on cold days. This car is services regulary and runs great and battery, spark plugs, ignition wires,coolant etc were changes last year.

Thanks
--rubs

Which engine? If it's equiped with a cold start valve look in that direction. Also consider the idle air control valve.

Thanks for the reply, this is a 4 cyclinder camry.