Car won't start. Help Please!!!

[LaunchHard]

I transfered my engine/tranny into a different shell. And after i have assembled everything, i can't get my car to start. The car tries to run as long as i have the key turned, but as soon as i let off it sputters and backfires to a hault. I checked and rechecked the plug and wires, and there good. I know it's getting fuel, cause one of the injector gromits was bad and it spewed fuel all over, so i replaced all four. I wired in an SAFC and thought that I mixed up some of the wires, but checked all the wires and there good. The AFC even kept its settings ffrom before, Karmons, and 2 Cyl up.

The car is getting fuel, air and spark. I know the engine is good along with the ECU, because they both came out of my car, which ran perfectly. I have gone over everything I can think of and cannot get the car to run. I've been racking my brain for days and am ready to flip the fuck out. If anybody can give me some ideas, even if you think they're obvious, throw em up here, cause maybe I didn't think of it.

My friend called his mechanic friend and he said that Talons have to get there ecu's flashed, or something when you remove the engine or ECU. He said it has to do with the cam angle sensor and a computer that reconfigures it. Haven't ever heard of anything like that, but if you guys know something I don't...

[Pimpin Dsmstyle]

Check your Cam Angle Sensor. It could be off 180 degrees. I had that same problem a couple cars ago, and it turned out the CAS was bad. Even if it worked in your car, doesn't mean it will work now. Something could have happened between then and now.

[TheBlizzard]

Timing is probably off or the CAS. Could be a bad ECU but unlikely.

[LaunchHard]

How do you adjust the CAS? But how could it have gotten messed up when I didn't touch it. And as for the ecu, it ran everything in the last car just fine. I do have a feeling it does have to do with the CAS, but how can I tell for sure? I know the timing isn't off, because it was off, and i fixed it yesterday.

Its not like this stuff has been sitting around for a while, I started on this three weeks ago to the day. Before that, everything was in a working car.

[Shane@DBPerformance]

Did you swap it in or out of a 1990?

[LaunchHard]

Did you swap it in or out of a 1990?
It went from a 92 to a 93.

[Gravy]

With the car i'm looking after taking care of, when you start the car, it will turn over fine, start running, then fall flat on it's face. Sounds like what you have. Try starting the car and pumping the gas pedal. When you look at the car, or try and figure out what's wrong. You'd think, starter's bad, bad plugs, wires need to be replaced. But, if you start the car, and go about 3/4 or 1/2 throttle and tap it that far as fast as you can, my(babysiting) car starts and just idles bad for a while. Try it and see if it's working. Another option, is everything grounded out? :confused:

[LaunchHard]

The grounds could be an issue. I'll have to make sure i go over them. Where are the major ones, besides the battery ground?

I have tried giving it gas while turning it over, but makes no difference. It tries to run, but as soon as i let off the key it putters and backfires off. It's ran for maybe all of five seconds at a time. It has the esentials, but won't stay running.

[Gravy]

So it stays running after the ky is off for a short little bit? I'm not sure i understood when you stated that before. I had a field day trying to get it to start the first time. I'll take your word, but it took me 15 or so tries to finally start it. It smelt of gas, and seemed like there was no spark. After it warmed up, it would have no issues.

Check the grounds, try making some new ones, i'm not sure on the DSM where most are located, but i know almost the entire block is grounded out, along with the body. Someone else may be able to help you out, but with the grounding kits you see, they just ground everything together. Engine, tranny, exauhst and frame.

Anyone know all of the grounds?

[LaunchHard]

I have a strong feeling it has to do with the grounds, but all the ones i've seen so far are fine.
When i start the car, before it shuts off, it backfires like crazy.