I have a 92 Camaro 5.0 tbi and only 1 injector firing. I swapped #2wire to drivers side and both injectors work off #2 wire but #1wire not getting fire at all. I checked both injector fuses and both have power and even changed them to make sure and still no power to #1injector wire. Engine came out of my 88 Camaro. Would anything be different like distributor or tps. Etc. Just trying to find out why only 1 injector is getting power.

 

On tbi a few inches back in the harness the injector leads splice together.
on the one that isn’t pulsing do you have power key on ?

 

 

No power when key is on

 

Thanks for the help. It was me outsmarting myself. I added a kill switch to injector #1 and forgot. It’s working fine now. If you can’t laugh at your self who can u laugh at! To smart for my own good. My father always taught me to ad a few kill switches to the older model car. Thanks again

 

your checking red and white leads key in accessory position? This is a 1227747 schematic same as the 1228746 and 1228063 305/350 tbi ecm.

 

Thanks my friend. I added a kill switch and found it when I dropped fuse box. To smart for my own good. Thanks again