'93 North* Glitch out of hand!

[Ranger]

By TURNING ON THE IGNITION... does that in itself build fuel pressure to locate a leak?

Yes, That energizes the fuel pump for 2-3 seconds and pressurizes the fuel system. Bumping the starter does nothing.

I don't see the fuel rail in those pics. I think it is down below that gasket or whatever that is around the manifold.

[Ranger]

I can ASSUME the fuel inlet connection is leaking fuel while running, but how does it continue to leak ENOUGH fuel when turned off, to create so much smoke at start-up??

When you shut down, the system is still pressurized to 45 psi. That pressure bleeds down to zero and the raw fuel sits in the manifold until you restart. You must locate and repair the leak.

Gotta leave for work. Talk to you later.

[Mountie]

Originally Posted by Ranger

When you shut down, the system is still pressurized to 45 psi. That pressure bleeds down to zero and the raw fuel sits in the manifold until you restart. You must locate and repair the leak.

Gotta leave for work. Talk to you later.

Thanks... Uh, I have a previous post photograph, showing what the fuel rail looks like below. The actual connection looks like the connection the FPR fits down onto.

Thank you so much for your help!.....

[Mountie]

Originally Posted by Mountie

Thanks... Uh, I have a previous post photograph, showing what the fuel rail looks like below. The actual connection looks like the connection the FPR fits down onto.

Thank you so much for your help!.....

Here's photos of the area. The fuel INLET is underside, & you have to push down all 8 injectors, the FPR, the Brake vacuum, & Fuel inlet fitting at the same time.

First photo shows the fuel rail hose inlet, that attaches to the tube, coming up from the casting.... Below the casting is the fuel line.

[Ranger]

I suspect the leak may be in the fuel rail running from injector to injector.

[Mountie]

Originally Posted by Ranger

I suspect the leak may be in the fuel rail running from injector to injector.

There is so much CRAP to atimize fuel & air......

I believe I found the cause of excess fuel in the intake. Carefully raising the fuel rail above the FUEL INLET..... I noticed puddling at the Fuel Inlet fitting. Closer inspection, "something looked funny"........ some debris where the 'O' ring is. (The exterior fuel line enters the Injector housing from the bottom, with a nipple poking up inside the intake. Around that nipple is an 'O' ring). The 'O' ring had a chunk taken out of it. ( Old repair, or crappy factory assembly) .... Fortunatly, I have a spare 'O' ring from my sparr injector unit. I replaced it. After the residual bit of fuel spill, this should remove the "white smoke' problem. I hope.

Uh, the dealer has mostly, NO MORE PARTS FOR THE '93 -'94 Northstar injector parts..anywhere. No 'O' rings, etc. So they say.

Cross your fingers. ( Now to the idle glitch )

[Ranger]

I think you solved THAT problem. Just maybe, they where related and you killed two birds with one "O" ring. Fingers crossed.

[Mountie]

Originally Posted by Ranger

I think you solved THAT problem. Just maybe, they where related and you killed two birds with one "O" ring. Fingers crossed.

Took it for a short cruise. It idles at around 1,300, causing a bit of a "cruise control" feeling. I noticed, being careful not to excellerate more than needed, it sort of 'cruised' at the same speed I held it. It hauled ass when I tested it, and ran nice.

I wanted the car to "LEARN" different actions. After parking it, and a half hour later, I started it. It idled perfect ( 700 rpm) I hardly touched the gas parking it in the garage. Seemed perfect.

I'll see how it drives tomorrow, using the throttle as normal, not being "careful".

In the morning, it should not smoke......

I wonder how much $$ to have a guy do the "Learning Procedures" > New ISC, etc...... To dial it in?

I'll let you know what the results are tomorrow....If I can go to sleep....

[Ranger]

If it runs OK tomorrow, don't do anything to it other than drive it. You fixed it.