Ok so I solved the problem now , thanks to my mechanic friend we checked continuity on every single pin from the main ECM and tested all the wiring , threw a test light on the injector wiring and ended up swapping one of my new injectors (#4) and that solved the issue. Running good now , I guess a l...

So here’s the deal. 2009 Pontiac Vibe awd 2.4l I have been trying to get this problem solved for a few weeks when I have time , but I’m almost at my wits end I read my codes recently (I’ve had check engine light on for a while due to my downstream 02 sensor being cut off), so I decided before I went...