1991 crx wont start

[d16z6si]

drove the car last night got in it today and my ecu has no power and the fuse is good what would make it do this

 

[reikoshea]

bad ground? Best i can think of.

 

[ZCpowerdSI]

Maybe you left your interior lights on.. did you try boosting it? lol. just a thought

 

[d16z6si]

it will turn over the ecu has no power i have chenged it the main relay what could it be

 

[Fernpatch]

ignition switch? grab a test light or a multi meter and a wiring diagram and check and see what wires at the computer don't have power.