I got a 92 trans am 305 tpi, and well basically it started running bad out of nowhere. No vac leaks from what i can see. it had a tune up less than 10k ago. when running it barley make it to 1500 rpm with out stalling. you have to feather the gas just to get it there. So i decided to pull the injector wires. and well when the #7 is pulled it ran better.. it would rev all the way with out much problem. but as soon as i plug it back in it runs like crap again? any suggestions?

 

check the ohms on all of the injectors with a volt meter