i have an 87 gta 305 car and i cant get the injectors on bank one to pulse. i have checked grounds, power, ecm as well as replaced the injectors. i have no idea what is going on. im pulling out my hair to to figure it out.

 

Checked the INJ fuse for that bank?
have you got 12V on one pin at a injector plug in that bank with key on ?
Have you got open ( not to ground ) circuit on the other pin of injector plug ?

 

Like vetteoz said start with the fuse check for power koeo at the injectors. If that checks out than move back to the ecm and Koeo check for power at pin D15,Lt. Blu Inj.1-3-5-7 and pin D16, Lt. Grn Inj. 2-4-6-8 if those are fine the 1227165 ecm needs tobe replaced.

 

I have checked all the connectors pin outs fuses (forgot to mention above) and voltage references to the sensors and I tried another ECM and nothing has changed. The only code that comes up is a dtc 13 when it tries to go into open loop.