Hey guys, I'm pretty new to these motors (coming from a VW/Audi background). I'm lead to believe that I have a small crack in my fuel rail that's causing a slight gas smell on the passenger side of the engine bay. Is the easiest way to check this out going to be removing the plenum (and both throttle bodies and other various conditions to the plenum?) seems like such a PITA to remove the plenum every time you have to do something. Way different design from what I'm used to. Also is there anything else I need to know? Thanks in advance

 

If you have a crack on the fuel rail you would have a lot of fuel dripping and spraying down the motor. I can't think of any scenario of the line being damage by something since it's practically shielded by the upper manifold. Check if the Fuel pressure regulator is damage, it's on the passenger side up front when you take the engine cover off. Did you install any mods recently?

 

my guess is going to be an o-ring is messed up around on injector

 

I didn't do any modifications recently but I bought the car like this. It's been having that smell since the day I bought it. I'll take a look at the fuel pressure regulator.

 

Which brings me back to my original question. Any tricks to taking the manifold off to check the fuel rail/injectors out or is it just removing all the lines going to the manifold and the 6 bolts holding it down?

 

i sold mine like a year ago, and did the plugs like 2.5 years ago... slept since then, but think it is best to remove it

 

It's fairly straight forward
- Remove engine cover and strut tower
- Remove bolt and un-hook hose in the back of IM
- Un-plug TB harness
- Unscrew TB's
- Remove intake tube to reach in the bottom of the TB's allen key screws
(No need to remove the coolant hose of the TB once detached form the IM & set it aside)
- Remove 8 bolts from the top of the IM

There are 4 bolts that is holding the fuel rail (See photo for the first two, and the other two are near the firewall)
removing the Injector is a little tough so take your time. To install the injector back in, you would need o-ring lube (I used clean engine oil around the o-rings).

You can then pressurize the fuel line by turning the key to on (Not start) and check for leaks.

 

Go to page 40. GL!

http://www.yumpu.com/en/document/vie...tm-motorsports

 

Update! So, since the weather was nice today I decided to tackle this thing and find the leak.
It wasn't by the fuel injectors or fuel rail at all.

It ended up being here:






It's hard to see, but its a hard line connected to that blue hose, which runs up to the fuel regulator. After shut down, I barely saw a tiny tiny tiny stream of gas coming out of a tiny hole on that line. WHAT IS THAT!? My question is, how the hell do you get to that line? It's in such a tight spot. It definitely looks aftermarket though (previous owner).

 

Looks like a ZEX Nitrous system.

Unbolt the intake pipe from the TB and Remove TB (4 Allen bolt). You should have enough room after.

 

I think you're right because there are some purple components under there and I do remember the previous owner saying he wanted to do nitrous. I guess I'll check it out. I hope that hard line isn't too bad to change out...