Hey guys so a week ago my car started running funny, hesitating and misfiring when on the gas and slow acceleration, then yesterday it stalled while idling at a stop light and wouldnt start back up. I tried to jump it still no crank then roll started it down a big hill and it started after 3 pops of the clutch (going fast enough so that it should have started right away). Then 2 minutes later driving at about 3500 rpm in second it stalled and I tried roll starting it right away but after 4 attempts it still didnt start. I left it there overnight and went to check on it. Tried jumping once more, it cranked but no gas was coming out of the tbi even though there was pressure in the line to the tbi. I tried to check for error codes but the light wont come on even when key is in on position which it used to before this happened. (bulb isnt burn out). Is this my ecm? and how do I check it

Car is a 1989 camaro RS 305 tbi