i changed my battery back from odyssey pc680 to the OEM battery. car was running fine with the pc680. went to stat the car when i was done and it woudlnt start. everythign in the car is working...except there is no spark. (after cranking i connected my scanner to see if there was any codes...p1103 map sensor high...i cleared it)

i tested EVERY fuse, all are good.
checked for voltage at the wires feeding the coils (white wires) and there is no power when cranking the engine.
bypassed my AEM FIC to eliminate that as a problem, still no spark.
checked voltage at the ignition wires on the steering column, they have power too.

im at a loss.
im 99% sure the coils are fed directly from the ECU, but i find it hard to believe that the ecu is fried from simply changing a batterry.
is there somthing im overlooking?
i know a bad crank sensor would have similar symptoms..but id find it a huge coincidence if that went bad doing a battery swap.

trying to avoid bringing it to honda cause it turboed and has a piggyback... theyll probly f*** more s*** up than fix it. and they want almsot $600 for a new ECU+programming..so thats my last resort.

here is a link to the jdm fit ignition wiring diagram. it is mostly the same except the US fit only has 4 coils/plugs....so just ignore the 4 front ignition coils.
Wiring Diagram

 

thanks for everyones help! lol

but i fixed this. there is a 1 pin heanress plug behind the battery, fastened to the firewall/shock tower. the wire pulled out of that plug.

note to all...dont pull on the engine ahrness to hard when changing the battery. lol

 

You are the best! It worked