91 spits & sputters

91 camry DX 2.0 went out to start my camry today and it didnt want to start( which is very strange), i kept turning it over and finally after about 10-15 seconds it started to sputter into a very weak idle. as soon as i tried to rev it up a bit, it stalled. tried to start it again and had the same results. i finally got it running just barely strong enough to move it, and i turned it around in the driveway and as i was backing it in, it stalled again. its acting like the injectors are maybe clogged or dirty. its been fairly humid and moist here and i thought this could also be affecting the running condition. i just replaced the plugs, wires, and cap last summer. could anyone give any pointers? thanks