Help Changed My injectors now my Car Won't Start

During Idling, my car was rough and during low rpm it was also rough, I thought i just needed to clean my TB but that wasn't it. So i decided to take it to the dealer and he charged me $125 just to tell me that one of my injectors were bad and he would charge me $1500 for all six. So I took it to my mechanic and told him which injector to change ($300). That still didn’t solve the problem and then I got a check engine light for my knock sensor and code 300 (and I did have a tune up done not too long ago). So I decided to change the remaining two injectors in the front since it looked like an easy job.

-I took the fuse out for the fuel pump and ran my car till it died.
-Removed the neg. of the battery
-Unplugged the remaining injectors
-Pulled out one of the injectors (it was a b*^th)
-The second one came out pretty easily
-Replaced both injectors with new upper and lower cushions and o-rings with grease.
-The only thing I didn’t do was to remove the fuel rail when pulling out the injectors. (I didn’t think I needed to do that?

Now when I started my car it gave an initial go but died. I keep on trying to start it but it sounds like something it binding. Now when start it the whole engine and air intake shakes and it sounds like it’s about to explode.

I also see some gas dripping under the car, I don’t know if that is from when I was changing the injector or if I ruptured a hose?

Do you think something went into the fuel line when I wasn’t at the car when the injector was off? (probably a stupid question but from my username you can see I’m a wanna be mechanic)

What the hell did I do wrong? Someone please help.

go back and check all of your lines. check by your fuel filter, it sounds like some sort of back pressure may have broken a seal or pulled some lines loose.

try and find out where the fuel is leaking from, if the pressure in the lines has gone then it wont put gas throught the injectors.

During Idling, my car was rough and...

gas dripping under the car
- ppl say its easy to accidentally rip the injector seals

it sounds like it’s about to explode.
- intake leaks?

a wanna be mechanic
- sounds like real to me :)

Someone please help
- It will work on fifth reinstallation... then youre pro.

U dont tell about your cart model: there might still be extra problems lurking.

.

I will check all of those problems this weekend. and I have a '95 maxima.

I would also like to know if someone knows if there is a bleed pin for the fuel line so i can purge the air out, if there is any? Someone told I should do that before I start my car again.

...a bleed pin for the fuel line so i can purge the air out, if there is any? ...

No bleed for gas (only for coolant): If air bubbles exist/remain, they'll be soon injected out along gas. There's a regulator allowing excess pressure backflow to tank via separate hose. Gas press Regulator is adjustable by intake vacuum.

There are lots reasons for rough idle etc: plugs, coilpacks, sensors like MAF, TPS, Campos etc. ...AND lots of small brittled small ctrl hoses. Test & try to clean/adjust/corect; See http://www.cardomain.com/ride/748507/14 also check page 6,9,10 etc. for ideas what todo. VGE -engine locations differ, 'functionally almost equal'...