recently i took my motor out since i mishifted and bend couple of my valves. going to replace it with a new motor and rebuild my old one. also took the Ecu out and sold it since im getting another Ecu for turbo. now i have no ECU connected. should the whole electrical system turn off like that? the only light that on right now is a oil light on the gauge(even if the key is out). nothing in the car turn on. the radio don't turn on, no a/c, no clock or anything, no headlights/tail lights either. is there a system in the 97 honda prelude that tell the whole electrical system to turn off if there no ecu in there? i check all the fuses and jumper my battery and it still don't work. i wanted to test my new HID headlight, but nothing turn on. when i had my ecu in there with the blown motor, everything worked. anyone know about this or experience this problem? thx for the help guys.

 

i do not believe that the electrical will work with all that out

 

i don't know i hope it that, or else i have a major electrical problem.

 

anyone else know??

 

the ecu doesnt have anything to do with car electrical power....id check the main relay and also start checking fuses....do you have a multimeter?

 

All the rest of electrical devices in your car shoul work properly. I have semi-disassembled car and last time we needed to open the sunroof- no problem.

 

yeah it should all still work fine. are you sure you got the power cables hooked up still?

 

yes i got the power cable hook up, and ground. i also got another ecu and connect it again today, but it still the same. the only light that on right now is the oil warning light on the gauge cluster. i check all the fuses already, where the main relay that could went bad? how u know if a relay goes bad?

i dont have an ohmmeter

 

It's right up under the dash on the drivers side upper left.

 

nvm guys i fix it. my ground wires kit was shorting something out, i took out the kit and it work again. thank you for all your help