need help. everyone stumped! injectors not priming?

[sil80forme]

so my problem is that during initial startup the injectors dont prime to start... but if i turn ignition to the on position and take a test light and ground each injector its starts up fine and stays runnin with no problems. i thought it might be an ecu prob but i swapped ecu's and it still does not work. i check all visible grounds and everything looks like it is hooked up correctly. i am using r/c engineering injectors which was stated when i purchased that they were high inpedence so i dont need resisters but if i was told incorrectly what would happen if the injectors were low inpedence.. thanx oh yeah this is a ka

[MURPHY]

your ecu is bad. if you have to MANUALLY ground them out most likely your ecu is bad. the ecu should give them ground to feed

[sil80forme]

already put a new one in and that didnt solve the prob. its something else

[rps13drift]

If your injectors were indeed low impedence your ecu will eventualy burn out due to it over basicaly over working itself

[sil80forme]

how can i tell if the injectors are low inpedence

[MegasquirtCA]

use a multimeter and set it to OHLMS its a omega sign. If its low impedance resistance is usually 4ohms and under. High Imp is usually 10ohms and up

[sil80forme]

could my wires on the injector harness where they were spiced in be backwards?

[sil80forme]

well the injectors are 12.4 ohms so they are def high inpedence... anyone else have any other ideas of what it could be.