I have a 03 evo 8. A few nights ago, it started to loose power and the lights went dim and all the gauges went off. It eventually lost all power and drained the battery then died. Luckily I was able to get it off the freeway and to a safe spot. I got a jump it fired right up good for 30 sec then gradually lost all power and died again. I was thinking the turbo timer was messing it ( its kinda intermittently worked if it was moved like a loose connection somewhere in it). So I just unhooked the timer from the harness that splices into the factory harness. Jumped he car and again runs like a champ then 30 sec later no power and dies. The alternator was brand new as of a month ago. Do I need to uninstall the turbo timer harness from the factory too? Any other ideas? I just had the car tuned last wed at English racing, could it be an ecu issue? Thanks for the help I'm lost right now not too good with diagnosing electrical.

 

I would say it is your alternator.

 

check the alternator fuse in the fuse box in the engine bay

 

Wouldn't be that if you can charge the car and it fires back up

Sounds like a bad Alternator to me

 

I haven't technically "charged" it just a sime jump then it dies. I will charge the battery and see if it will run until the charge is gone.

 

That is kind of what our are doing when you jump it..... Then your battery runs down and your car dies cause your alternator is not putting out like it should.




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