Throttle down shuts the fuel off. Was it flooded?
Hard to say. The first 7 times I tried starting it I gave it absolutely no throttle. Then I later gave it a little throttle on some tries, no throttle on other tries. The car say overnight, and would not start the next day when I didn't give it any throttle at all. When I finally mashed the throttle and held it to the floor that was the only thing that got it to fire up. I changed the fuel filter after this happened, just in case, and hasn't happened again just yet... but it has only been less than 2 weeks.
If we're running a full 3L, do we still have to have CSVT injectors to run? If so, my car has 179k miles.... maybe they are the original CSVT injectors and they are leaking slightly, when the car is off, causing the engine to flood? It was strange because this happened on the very first, very cold day we've had here in the area. It was in the 20's. I pulled the car into the heated garage for several hours and it still wouldn't fire up, so not sure if the cold weather had anything to do with it somehow in my case.
Well pulled cop setup and reinstalled the coil pack and plugs. She wouldn't fire up. Sprayed some starting fluid in her and she fired up and died. Checked the rail and there is fuel pressure. So either no signal or injectors closed up. I did solder in the injector clips from the 3l harness.
Before this I was worried I didn't rotate my pulse wheel so pulled crank and it is correct. I'm gonna swap the harness back to see.
Yeah does sound like fuel is the culprit... whether the injectors aren't firing, or they're clogged. How long did the injectors sit before you tried firing up the car? If they came off a junkyard motor in this is your first time using them, they are probably "stuck". No joke.... drop each injector on the ground (a hard surface.... cement is best since the smooth surface won't easily scratch up the outside of the injector) a few times. That usually gets them flowing/spraying again.
One thing you can do before trying to get them unstuck is clip a spare fuel injector connector from an engine harness and plug it into an injector. Take a fluid bulb like this
and fill it with fuel. Get a small worm-gear clamp and secure the end of the tube of the bulb filler to the top off the injector. Have someone tap the wires on the fuel injector connector to a 9-volt battery, as you squeeze the bulb firmly to pressurize the fuel in it and see if your injectors are spraying. If they're not, drop them on the cement a few times, and try again.
If you do the above test, just be sure to extend the wiring of the fuel injector harness that you're using. Use at least a couple feet of wiring between the injector and the battery, to prevent liquid fuel or fumes from getting ignited in the event that you get a spark when tapping the end of the wiring to against the 9-volt battery. Hope that helps.
You can also use a test light to probe your injector connections. Not sure if these injectors receive a ground pulse, or a 12v+ pulse... but connect the probe up accordingly and have someone turn the car over as your probe each harness to make sure you're getting signal to the injectors.
Lastly, be careful with using starting fluid on a fuel-injected engine. I would totally stay away from it, but if you absolutely have to ever use it, use very minimal amounts. I blew out my oil pan seals on a brand new motor I built for a '92 Taurus SHO I had that wasn't firing up. And after taking 3 days to get the engine in and everything buttoned up, I had to remove it again to change the brand new oil pan seals. BE VERY CAREFUL! Good luck!!
-Andrew
