No Ignition No Power

[Roc]

Alright I just got done fix my exhaust on my car.. my car is normal It starts up on the dime, Avc-r turns on headlights everything works properly I leave his house about 100ft down the road my head lights Flicker on and off. well they do it every time I brake and push on the gas. I stop at the intersection and im going again and same thing but this time at the end of the road my car dies completely.. nothing turns on besides my cluster and dome lights.. I dont even get a click out of the starter.. headlights wont turn on windows wont roll down or up.. hazards were the only thing that will turn on.. I start doing routine check .. nothign seems out place.. I checked my relays checked all my grounds.. only thing I can think of is the problem is at the ecu... Any ideas what it could be?

[vancouverbc]

how is your alternator?

[UNVMY240]

Sounds to me you have a main power feed to the fuse block or junction block losing connection. I dought its an ecm, on nissans the ecm supplies the grounds for everything. If the ecm was the case then you would have power to say your dist/ coil but no ground. Start with a list of all the things you can find that dont work, right them down and then find a repair manual and look at a wiring diagram for the car. There should be a section that list all the components and where they tie into.

[Roc]

its just fine... my battery still has power in it also... I was checking the fuse block... even around it.. Everything seems in place.

[dgms240]

mine did the same thing when i first bought it (95 s14). ended up being just a loose neg. battery cable. bought some new brass connectors and no more problem.