L-jet trouble shooting questions Options

[echocanyons]

I have a 75 with a 1.8 & l-jet.

I recently purchased this car as a non-runner but in good overall structural condition.

I am now at the point where it cranks by the key and I get spark and fuel but the injectors are not functioning.

the checklist of things I have checked are:

1. Compression, good all the way around

2. Spark, also good all the way around

3. Fuel, good pressure, fuel pump runns when the AFM flap is moved and when the starter is engaged.

4. ignition switch replaced by me for a non-functioning one.

5. The dual relay were replace by a used unit that seems to work

6. The thing I know is wrong is, the injectors are not opening or getting a charge to open. I understand that normally the signal to power the injectors comes from the coil & they open twice per crank rotation in a non-sequential fashion.

Are they powered by the ECU as well? Where should I start looking next?

I bet if I can get the injectors to fire this puppy will start right up.

[zx-niner]

If the above suggestion doesn't work, one thing that always caught me out on my '75 L-jet was a lone white wire that came directly from terminal 1 of the ECU to T-1 of the coil. The Haynes manual shows it in the current flow diagram as a black wire but for some reason it was white on my car. I don't know how many times I forgot to hook up that single wire after re-installing the engine and the engine would crank but not start.

I have no idea what the wire did or if the wiring was modified prior to my getting the car but it was a critical part of getting the car started.