I just got this h22 in and running was having an issue with the main relay (fuel pump wasn't priming) now it just starts and dies code 41 is all I get running jdm P0F ecu came with the swap.only cel I get is 41. Don't know what else to do any ideas would be great

Thanks

 

Isn't that ecu obd2 ? I assume you're using an obd1 to obd2 conversion harness ? Is the engine obd2...meaning does it have the crank sensor and crank timing pulley ? Did you run the necessary wiring to the crank ?

If not, then provide more information than what you have given based on what has been done. We can't read minds here.

 

Engine and ecu are obd1

 

Oh ok

 

Update fuel pump primes (can hear it clearly) but not getting pressure to the rail anymore dunno what happened and I keep loosing spark it sparks then it dont right now theres no fuel or spark main relay is brand new can hear it click for the pump and thw ignition both are getting 12v dizzy is also getting 12v to the yellow black wire...and all my grounds are tight and clean (thermostat housing, driver side, and the one on the trans)

Also does the same with my chipped p28 and the original accord ecm