Hey again. Ok.. I have a '95 miata with a '97 donor motor that I transplanted. Used all the old wiring and old ecu and from everything i read, as long as you use the old wiring and fuel injectors that things should work just fine. BUT... The bitch starts and then immediately shuts off after a second. It has fuel and spark. Checked the ecu (morse code style) and it says IGF. SOOO ignition signal is not getting to ecu? Checked and rechecked wiring... any suggestions?

 

WOO got it runnin!!! The coilpacks are different from 97 to 95.. so switched them back to the old ones and it runs oh so good. Not even a check engine light..