Well, I changed my injector a couple of weeks ago and the car never ran. I nerrowed it down to the fact that none of my injectors is opening. There is fuel in the rail but still none of them lets fuel in the cylinders...Any ideas?

 

if that truelly is it. ur best bet is to get new injecters from a junkyard or from osomeone on forums cause 5 new ones will run u 500-650$ they are 133.00 each from nissan for my 94 gxe

 

I think that you misunderstood me...all my injectors are in excellent shape. The problem is that none of them functions. The car was running rough before so I changed three faulty ones with good used ones from my other maxima. There must be a blown fuse or relay or something that controls all of them. I checked all my grounds and they are secured. I checked for fuel in the rail so this one is eliminated. I pulled random plugs and they were all dry which is telling me that the injectors remain closed all the time. I have perfect spark in the right moment as well because the car started with starting fluid. Also, my fuel pressure regulator is good...It must be something very small...I can't get my car on the road again...

One more thing...the throtle possition sensor is different for manual and automatic vg's,right?

 

So you checked fuel pressure, right?
If there is pressure, fuel pump should be working fine.
Crank a few times, and pull out codes.
check and make sure there is signal at injector connectors when cranking.

 

the injectors may not be getting the signal to fire.

 

hehe, I know that but is there something that controls all of them?

 

I think they share a common ground

 

there are two grounds that screw into the lower intake and they are both secured. Are these the ones you're talking about?

 

Does someone as a shema of thoses ground... i have some prob too whit my injectors.

 

don't honestly know.
but if you can borrow a noid light fromsomeone you'll be able to tell if they're getting signal or not

 

maybe you fried the ECU????? if so i have one for sale..... try disconnecting the battery for a few hours and reconnecting it to reset everything... then check to see if the fuel pump is giving you gas to your injectors.. i also have a VG fuel pump for sale