Ok, I purchased a D15b engine out of a running car, that I observed running myself just before he pulled it. It was in a 92 hatch. I just swapped it in my 93 coupe dx to replace my old worn d15b7. I am using a stock ECU which I believe is a PM6 or P06 and stock wiring harness. I am getting fuel and the engine is turning over but no spark. Nothing on the dizzy or spark plug wires was touched after coming out of the running car. Could it be an ECU incompatiability? I have ran a search on this issue and it seems that this has been a rather common issue but every solution point to firing order or the coil/igniter assembly, which I don't think would be the case in my situation because it is exactly as it was when it came from the running vehicle.

 

How about the grounds.
Tranny ground. Thermostat ground, valve cover to radiator support ground.

 

I will check them when I get home.

 

the more grounds the better, all the clips on your ecu pluged in ?? or the ecu fuse blew, (passanger side strut tower fuse box) those are some of the easy things that would make it not spark, try those and see whats up.

 

i'm guessing that its the thermostat ground its easy to miss and i think its the dizzy ground

 

true statement

 

alright, I am a jackass, it had spark but no fuel. the fuel rail hookups were different from the both engines, so I switched out my old fuel rail and it runs like a champ.

 

sweet go beat the ---- out of