a few months back i posted on here that i got my car running after replacing my fuelpump and my FPR vacum hose then a week later it wouldnt start. i thought it was my FPR so i just got an entire new fuel rail with 3.1 injectors,( thanks dan) i just got done installing these except my cold start injector to the rail. i couldnt get to it so i just kept i unhooked,Well im still not getting pressure to the rail and now my cars not even cranking, about 3 weeks ago it was cranking no problem but now nothing, i know my battery charged and all but why all this now? please help...

 

Uhh, the fuel rail in it now is from a 3.1 if I understand correctly? Does the rail in it now have the hole in it for a CSI(cold start injector) and if it does, is anything plugging that hole??? You can't just leave that hole with nothing in it, if you did, pull it out and plug the CSI injector in it...really not much work removing the fuel rail, but if you just mean that there either is no hole/provision for the CSI or that the electrical connector to the injector harness isn't connected then it might not get enough fuel on startup, but it should still crank and fire at least.
When you say its not even cranking, its not turning over at all, or just not firing?
If its not cranking at all, check that the battery to engine ground isn't loose, then check the wires on the starter solenoid, when you try to start it, does anything at all happen? Like a click noise from the starter? There should be 4 diff connections on the starter solenoid, 3 diff bolt studs for them, the one closest to the ground is a terminal between the starter solenoid and motor, check that its a good connection, then there should be a loop connector from the chassis electrical harness, it should have 2-3 wires going into one loop connector, that goes on the stud above the first one I mentioned, make sure that is connected first, then on top of that on the same stud goes the negative battery cable. Last but not least is the third terminal, its the one closest to the engine, and should have one wire going to it, this is the starter engage wire.
Check that all the connections are good and that one of the 2-3 wires going into the loop connector didn't blow out, as they are fusible links. If you check all of that and still have issues, pull the starter and take it to an advanced auto and have them test it for you.

 

the fuel rail is from a 2.8 firebird but its got 3.1 injectors on it, i dont have anything plugging the CSI because the two CSIs are different but i couldnt get back to the one on my engine to unhook it, so what should i do on this? also yes its not turning over, its not doing anything, also i dont hear any clicks, but i also need to check my SNS since i swapped shifters, if nything came lose it would have to have happend when i was feeling around the back of the engine for the CSI stuff.

 

check fuseable links at starter etc for beinh burnt, use a test light on both sides of the links make sure hot before and after each one

these feed power to inside of car, fuse panel circuits
could explain all the dead stuff all of a sudden
make sure battery cables not corroded or loose, and are clean,
make sure of this...
also that all ground wires and cable are connected, to engine and interior of car under dash ones tooooo....

how many volts reading on guage in dash with key in run position?

 

You still have to clarify on the CSI...Idk if you're saying the electrical connector isn't plugged in, or if you're saying the CSI line isn't connected to the fuel rail, the injector needs to be in the back of the intake manifold otherwise you won't have vacuum, and the hole on the rail needs to be plugged with a bolt, or you could just reconnect the whole deal, but you have to have something plugging those two holes, otherwise you will have no vacuum, or fuel pressure, and a huge fuel leak, if the fuel pump kicks on its just going to pump fuel right out the top of the rail unless its plugged with something.

 

i dont have it connected to the rail

 

Yeah...don't even try to start the car like that....serious fire hazard if by some chance it would start, youre going to have gas leaking bad, its just going to run right out the top of the fuel rail.

 

well how can i get the CSI off the back of my block? i cant get back to unhook anything since its under the dizzy.

 

It should swap over... I don't see how the tube on the existing CSI should be any different from the one I sold you. It may need to be bent into position. I think the only year that got the different CSI was 89, but I couldn't swear to it.

If you're really bent on getting the existing CSI out of your engine, I believe I got mine out merely by using a long 10mm socket, or maybe with a short 10mm, universal joint, and short extension.

Either way, don't try to crank the engine over until you get the gas figured out. Otherwise, the pressurized fuel is going to squirt about 8 feet out of that empty hole, or all over your engine bay if the upper plenum is in place.

Once you get the gas figured out, then you'll want to disconnect the fuel pump relay (just in case) and adjust the NSS on the shifter until you can crank the engine over in both Park and Neutral (and also make sure the reverse lights turn on in Reverse).

:edit: I forgot to tell you that the o-ring stuck inside the CSI tube connection is a tight bugger. It takes some force to get the tube in there. I hope you didn't lose the o-ring on the CSI tube (the little one that wasn't stuck in the bore).

 

On the CSI on my car now it screws on to the rail where the one you gave me has a long needle like thing that goes into it, the one on my 86 doesnt. My Nss was the problem so its fixed... also i cant get to the injector boot to unplug it and i cant find the bolt in order to loosen it

 

That CSI connector is a pain and a half to get off. It takes some patience and possibly a screwdriver.

Did you check to make sure that the fitting on your existing CSI tube isn't attached to the part that screws into the rail? I know mine has stuck a couple of times. If you look at it, it may look like where the rubber fuel lines connect to the metal ones, a small nut and a large one. AFAIK, all of the rails were identical for the 2.8 RWD up to 89.

 

yes iv looked, the rail that was on my 86, the CSI actually screwed on to the rail where the rail you sent me that CSI has that little tube thing that goes into the rail then a nut that screws down onto the rail to tighten it, now like the 86.

 

Do you have a pic of the end of your existing CSI tube?

 

ill go and get one, i hope its not to dark..

 

i cant get one, ill google it.

 

is the CSI even needed?

 

Yes. It provides an additional squirt of fuel for the cylinders at startup. Not very necessary during the summer, but you'll want it for the winter if you want to keep from draining the battery every day.

 

that CSI is a PITA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

Still having trouble with the fitting? Trust me, you're doing something that's making it more difficult for you than it should be. Now, having to install it, without spilling gas, without removing the intake or disturbing the distributor, with a block-off plug in the back of the manifold that needs to be knocked out (3.1 has a block-off plug in the CSI hole), THAT is a pain.

 

im installing it now, hence PITA