84 injector installation
Thread Starter
Heel & Toe
Joined: Jun 2010
Posts: 19
Likes: 0
From: Bloomington Minnesota
84 injector installation
Hello Everyone,
Just a quick question, is it possible to install the injectors on a 1984 crossfire 180 degrees off? I installed mine after having them serviced by FIC and now I'm wondering.
Thanks, Al
Just a quick question, is it possible to install the injectors on a 1984 crossfire 180 degrees off? I installed mine after having them serviced by FIC and now I'm wondering.
Thanks, Al
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
Al,
I haven't personally done injectors on an 84 yet, but I don't see how you could do that. They spray in a cone shape, and I'm betting they fall into a notch in the TB casting. If they're like other injectors (and I can't see why they wouldn't be), they don't care which way you connect the wires either as you're just applying power to a coil.
In short, no I don't think you can.
Marc
I haven't personally done injectors on an 84 yet, but I don't see how you could do that. They spray in a cone shape, and I'm betting they fall into a notch in the TB casting. If they're like other injectors (and I can't see why they wouldn't be), they don't care which way you connect the wires either as you're just applying power to a coil.
In short, no I don't think you can.
Marc
Thread Starter
Heel & Toe
Joined: Jun 2010
Posts: 19
Likes: 0
From: Bloomington Minnesota
Al,
I haven't personally done injectors on an 84 yet, but I don't see how you could do that. They spray in a cone shape, and I'm betting they fall into a notch in the TB casting. If they're like other injectors (and I can't see why they wouldn't be), they don't care which way you connect the wires either as you're just applying power to a coil.
In short, no I don't think you can.
Marc
I haven't personally done injectors on an 84 yet, but I don't see how you could do that. They spray in a cone shape, and I'm betting they fall into a notch in the TB casting. If they're like other injectors (and I can't see why they wouldn't be), they don't care which way you connect the wires either as you're just applying power to a coil.
In short, no I don't think you can.
Marc
Might end up pulling the throttle bodies and servicing them to see if that helps. So injectors will be coming out again anyway.
Again, Thanks. Al
Thread Starter
Heel & Toe
Joined: Jun 2010
Posts: 19
Likes: 0
From: Bloomington Minnesota
No, that's something I haven't done. When/if I can get it to start the "service engine" light is not on.
Jon with FIC thinks I might have a problem with the TB's being gummed up.
Also need to check fuel pressure and whether the sock is plugged. Car won't run. Only way to get it to start is to squirt a little gas into the TB's then feather the throttle like mad. Stop and it kills, won't idle.
Al
Jon with FIC thinks I might have a problem with the TB's being gummed up.
Also need to check fuel pressure and whether the sock is plugged. Car won't run. Only way to get it to start is to squirt a little gas into the TB's then feather the throttle like mad. Stop and it kills, won't idle.
Al
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
al i marked them front and rear.. There is an alignment tab on the bottom of the injector that fits into the slot on the pod. No way to put them in 180 out. Regardless, they are a peak and hold coil, reversing polarity would have no effect. I still think you are not getting fuel into the injector pod, remove the regulators and boil ot the pods, then clean all ports using high pressure air and gumout. Do not mix up the regulator diaphragms, the front is different than the back so do one at a time. Also be real careful replacing the tiny torx screws that hold the regulator cap on. If they bind do not force them as they will snap off easily. Fit the screws by hand first and make sure you can run them in and out buy hand. Use a little anti seize lubricant when putting them back in. You will need a c-clamp to compress the spring down as doing it by hand is very hard to do and you will end up rupturing the diaphragm.otherwise its really an easy fix. Do the above only if you have fuel pressure going into the tb. If you have no fuel going in, then its fuel pump, relay etc.
Thread Starter
Heel & Toe
Joined: Jun 2010
Posts: 19
Likes: 0
From: Bloomington Minnesota
al i marked them front and rear.. There is an alignment tab on the bottom of the injector that fits into the slot on the pod. No way to put them in 180 out. Regardless, they are a peak and hold coil, reversing polarity would have no effect. I still think you are not getting fuel into the injector pod, remove the regulators and boil ot the pods, then clean all ports using high pressure air and gumout. Do not mix up the regulator diaphragms, the front is different than the back so do one at a time. Also be real careful replacing the tiny torx screws that hold the regulator cap on. If they bind do not force them as they will snap off easily. Fit the screws by hand first and make sure you can run them in and out buy hand. Use a little anti seize lubricant when putting them back in. You will need a c-clamp to compress the spring down as doing it by hand is very hard to do and you will end up rupturing the diaphragm.otherwise its really an easy fix. Do the above only if you have fuel pressure going into the tb. If you have no fuel going in, then its fuel pump, relay etc.
Al
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Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
Thats where you should have started before assuming the injectors were bad.
Tom400Cfi pointed you in the right direction, first check fuel pressure and that WILL tell you the direction to go in.
Have good pressure 9-13 psi at idle and WOT, then you go in the direction of your TB's.
If not work backwards to the fuel pump. Fuel Filter... then the tank
Tom400Cfi pointed you in the right direction, first check fuel pressure and that WILL tell you the direction to go in.
Have good pressure 9-13 psi at idle and WOT, then you go in the direction of your TB's.
If not work backwards to the fuel pump. Fuel Filter... then the tank
Cruising
Joined: Jun 2010
Posts: 12
Likes: 0
When you turn the key on can you hear the fuel pump? So you are not getting any fuel? It might be as simple as your gas tank is empty, dump a couple of galons in the tank. The neighbors kid might of borrowed your fuel. Your gas gauge might be reading wrong.
Thread Starter
Heel & Toe
Joined: Jun 2010
Posts: 19
Likes: 0
From: Bloomington Minnesota
Got the car to start, but would not idle and the only way to keep it running was to vigorously feather the throttle. Stop and it would kill. Now the only way to get it to start is to squirt a little gas in each throttle body. But then still have to continuously feather the throttle.
So had the injectors service, still same problem so new fuel filter. Still no improvement.
Going to pickup a pressure gauge and see what the pressure is. If that's okay then clean throttle bodies.
Al
