I've got a '91 Turbo II and I just rebuilt the engine. I tried starting it up and it wasn't getting fuel past the injectors. I installed new injectors, a fuel pump, and fuel filter, and gas still isn't getting past the injectors. I even checked the connectors at my fuel injectors with a test light, and on one wire the light stayed on and on the other it would flash, so I assume that they are good. I've asked around and no one here knows anything about rotaries. Could it be a bad ECU or some sensor? Do you guys have any ideas/ experienced this?

 

Air Flow meter perhaps?

 

Did you mix-up the "feed" and "return" lines?

 

That is how the injectors should work. 12V to one side and flashing to the other.
I would establish that you have fuel all the way to the injectors. Put a pressure gauge on the line coming out of the fuel filter, see how much pressure you have there. Then check at the regulator on the secondary fuel rail. If you don't have fuel/pressure to the injectors they can't fire.

 

How would you check the air flow meter? I know that I have gas going to the injectors because when I put new ones in, there was gas on top of them, but I don't know the pressure. Also, if I give it some starting fluid, it will start up for about a second until the fluid runs out and then will die again.

 

the afm has safety on it, but either way it should start up and die immediately. I can only think that you missed a ground to the ecu, but it turns on so scratch that..

 

I didn't install a new ecu, I just didn't know if they could just go bad sitting there?

 

It really sounds like you don't have fuel to the injectors. Could be fuel pump. Or a clogged line/filter.
If you have 12V to one side of the injectors, and the other side flashes as you turn the car over, your ecu is working. And chances are your injectors are working. (they could be clogged, but I think that it is highly unlikely that both of them clogged at the same time).
So, that leaves no fuel pressure.
You need to put a pressure gauge on the fuel line. The one coming out of the filter.
Until you do that you are spinning your wheels.

 

A couple of other "easy" tests: Find the test coupler over by the air box. It is a two pin connector. Not the three pin green one. Run a jumper wire from one pin to the other, turn the key on and listen under the back of the car and see if you can hear the pump running. You can also pinch the fuel line coming out of the filter and see if you can feel the pulses of fuel from the pump.

 

I had the feed and return lines reversed when this happened to me.

 

Does anyone have a pic or diagram of which way those three lines right there should be connected?

 

Yeah, I had my fuel lines mixed up. I straightened them out and it ran temporarilly. I also grounded the plug that turns your check engine light into a code reader and it brought up a code about a split air valve solenoid? what is it and does that mean?