Yup. GM's cost reduction to not use dual injectors per port and to not use dual drivers in the PCM, requiring a fancier PCM.
If you have a FSM, it should show a picture of it.
Please do.I may have to dig up my books and show pictures of it. GM seemed pretty concerned that mechanics would put the wrong injectors in the 3.4L DOHC (this was written before the N* existed in production). The injectors LOOK alike, but spray very different.
Yes, and it appears that your supposition that they are "split spray" injectors may be correct, at least for some years, according to my '97 FSM. Regarding the fuel injectors, it states (in part):Jason, anything in the FSM on the injector spray pattern?