Fuel Injector Hoses replaced - fuel everywhere!

[FastWoman]

I was just responding directly to a question. Sorry for any offense.

[sblake01]

No offense I just like to keep it simple, that's all.

[twsutt]

Simple works best for me. I'm simple.

[kjphilippona]

Hi, is the hose between the injectors and fuel rail and the hose along the fuel rail the same size ?

[twsutt]

kjphilippona - Yes, the hoses are the same size.

SBlake, FastWoman and everyone else - thanks for your help/responses.

In the last month I have taken a two week vacation and all the rest of my time has been taken up with my family (which is always a priority.) But yesterday I did manage to get about 20 minutes to start the Z, drive around for about 10 minutes, and do a little looking under the hood. No changes since post #22.

I did have time to pull each of the spark plug wires one at a time - the #4 cylinder came off without any difference in the idle.

Next I'll pull the plug to check if it's fouled or not sparking. If the spark plug is operating correctly I'll check the connection on the fuel injector.

If I'm getting both a spark at the plug and the injector is pulsing then I'll pull the injector.

I understand that there is a small filter on the inlet side of the injector...how serviceable/accessible is this filter? Will I have to remove the barbed nipple that the fuel hose connects to to gain access to this filter?

I've got to get the Z back in proper running order - last Friday when I picked up my 2 year old son up from his daycare he looked up at me as we were walking out the door and asked me simply and to the point, "Z?" We haven't gone for our Friday sunset drive in almost two months and my wife has said that she actually wanted to help me get some time with my mistress. (Besides, when my son and I go for our drive it gives her about two hours alone without anybody to bother her.)

[kjphilippona]

Thanks twsutt

[Skyblue280z]

My car is having that problem right now. I walked out of my garage smelling gas.. I opened my hood and turned the car on there was gas coming from one of the injectors... Now I don't know if its a bad injector or not because It just got new ones a year ago... No idea whats going on

[ZCurves]

I have dealt with this before, it turned out to be a bad injector. In your case, I would eliminate the following variables first:

Is the cyl getting a spark? (Check Plug, Wires, Cap, Rotor)

Is the Injector getting a pulse signal? (You can use an Idiot Lite, Long screwdriver to the ear or Mechanics Stethoscope to listen for the pulse).

Work your way back from these into the wiring harness. There is also a chance that you could have a bad Dropping Resister (these are the dudes hanging out behind the window washer tank).

If you have to take out the Injector, replace it with a new or rebuilt one. I put a new set it from Dr. Injector (http://docinjector.com/). Injectors are often brittle and plugged up anyway so it is cheaper AND safer to just replace them. Fooling around with injectors is a quick way to a Car-B-Que. Be sure to buy new seals/o-rings before you begin. This would also be a good time to evaluate the wiring harnes to see if the Injector Plugs need replaced.

PM me and I will email you the 280z Fuel Injection Book or search the classic z car forums for: '280zfuelinjectionbook.pdf'

good luck

[twsutt]

Skyblue,

Probably not a bad injector if it was replaced a year ago. I assume that the hoses were replaced at that time, or at least the hose that connects the injector to the fuel rail. Check the hoses and see if you can identify any code numbers on the hose and look it up on the internet - you may have low pressure fuel hose instead of fuel injection hose. That's what happened on mine...the previous owner put on the wrong type of hose and it began to leak about two or three years later (my car is just a weekend driver).

ZCurves,

I've solved my problem. I bought a new set of injectors, connectors, injector brackets, allen head screws, gaskets, ect. from OSideTiger FICS (http://osidetiger.com). Just for the security of knowing that the job has been done and how it's been done. As I unwrapped the electrical tape from the 4th cylinder's fuel injector connector I found that the wire had broken clean in half from being disconnected and reconnected to the injector. The wires were very stiff and brittle from thirty-five years of engine heat and the elements.