Starting issues 89 240sx I have tried the other casual forums!!!

[NissanPride247]

So I have looked for help on the more general forums. I found some great help there but I can't fix my problem. I have an 89 240sx and I can't get it to start. It turns over and everything sounds good but it just won't start. I gapped the plugs, swapped MAFs with a friend that has a working 240, checked the fuel pump, injectors are good. I don't know what to do!! I think it's wiring stuff but I don't know much about engine wiring and programing. Please help.

[Ryans13se]

im late but it could be your air filter.. and air set up.. if you have a leak .. your engine wont get the air needed to turn over..