I have a 20G GReddy setup that has RC 440 injectors. I upgraded to 720 Denso injectors. Now it will not start. I can hear it crank, but it seems as if it isn't getting fuel... Help...

 

Flooded? Tune? Did your car even know it has 720 injectors? Timing on the injectors?? need more info.

 

High impedence? Low? That's what screwed me up.

Tuning software? +1 on more info.

 

Whaaa!?? I thought bigger injectors automatically means more betta.

 

If you just swapped the injectors and didn't get it tuned, that is your problem right there. The ecu doesn't know that you have 720's in there and is fueling based on the 440's still...

These are the kinds of basic things you should understand before owning a boosted car... period.

 

^^^owned but still helpful haha

 

They are also peak hold low impedance so there's another fail...

https://www.extremepsi.com/store/pro...roductid=17524

 

I think he saw that it was greddy and he has greddy kit that it would match

 

where are the mods this weekend? I'm almost a little ashamed i'm from indiana now.

 

We drink beer and watch football like everyone else Jeff. Psycho gave him the answer he needed and now we are done.