I'm working on a 1992 sentra 1.6l automatic. After the car has sat for a while, usually overnight, it is very hard to start. After getting it to idle, if I push on the gas it bogs down and dies. But if I let it run at a rough idle for a minute, it smooths out and runs fine the rest of the day. I've changed the cap and rotor already and I'm waiting for the new plugs and wires to come in. It started doing it about an hour after my sisters dumbass boyfriend hosed the engine down with degreaser and hosed it off. But it ran fine for the hour or so afterwards. Any help or suggestions would be appreciated. It's my moms car and I'd hate for her to have to pay some $50-$70 an hour mechanic shop to tell what the problem is.