So I bought a 92 Civic that had a blown motor from over heating(d15b7) but i had a 94 accord ecu in it! I dont know. Why . so i swaped a d15b no vtec and got a po5 ecu and my car still wont start i connected eveything and grounds are good! It can feel and hear that i wants to but struggles after a sec but wont start i even put starting fuild and still nothing

 

The engine would probably run better on a P06 ECU.

What CEL codes are stored in ECU after cranking for 30 seconds?

Does the fuel pump prime?

Do all 4 plugs have spark?