wierd electronic problem

when i start my car the electornic(everything) work only after i rev past 3,000 rpm then work all the time after i hit 3 for the first time or if i turn on my lights. HELP!

i have the same stupid problem.
except my power works but once i rev to 3k, the lights inside and out get alot brighter and stay so.

maybe the alternator windings are going ? so time for a replacement ? or maybe your grounds and/or termnials are corroded

LOL prolly corrosion wouldnt be surprised seeing how i nick named my 240 the rustmobile

haha i think all 240s are named that unfortunatly the invernters in japan wernt thinking about wut happens 15 years l8ter.