Car Wont Start

[ibestevo]

Hey guys; So I swapped in a working DOHC engine into my 240. My car is a '89 Fastback base model. Anyway, while I was dropping the DOHC in the car I took off the a/c compressor and swapped in the DOHC ps hardlines. After the engine was in I connected all plugs, connected driveshaft, put in all fluids, and soldered all wires connecting to the ECU. Tried starting the engine and it wouldn't turn over. So I went on nicoclub and went looking for torubleshooting threads. I found one and followed all the procedures. I checked all of the fuel injectors to see if fuel was squirting; works. I checked spark with all wires and all plugs; works. I checked timing as well and that also is not the problem. Those were the three stated procedures to get troubleshooting done. All are not my problem :confused: . I have also searched Zilvia's threads for troubleshooting but I had trouble finding any different problems to look for. So if anybody has any ideas I could possibly check to get it running, it will be greatly appreciated. Thanks.
-Steven