1997 Chevy Cheyenne almost stalls out wen im at a red light

I recently installd new MFI injectors in my truck. It ran well for a day. now it almost stalls out when i come to a complete stop. other than that it runs great.

I upgraded the injectors because 1 of the old injectors whent out, and ive had them cleand out before and i was told that if didnt upgrade to to the newer ones they would peridically go bad.

I would appreciate anyhelp help this
thanks