anyone good with wiring??? need help bad!!

[luckie2hav3her]

theres a blue relay (12v 5A) that makes a buzzing sound when the car is on.... recently i tried jumping starting my car with my friends car and that wouldnt even work! now the only way to turn my car on is to clutch pop it, and when it is on, its hella weak like it has no battery wat so ever, my ebrake light dims and my battery light is on and dimming while the car is on..... i cant accerlate past 3rpm without having it struggle...... checked all my fuses theyre all good.... i tried looking at the wiring diagram posted in the tech section but i cant find that relay, and well its not color coded so i cant go by that, soo does anyone have a color coded wiring diagram for the s13?? and does anyone kno wat might be going on with my car?? do i need a new alternator??

[SirWarrior]

very likely you will need a new alt.
take it to autozone and have them test it

[idlafie]

theres a blue relay (12v 5A) that makes a buzzing sound when the car is on.... recently i tried jumping starting my car with my friends car and that wouldnt even work! now the only way to turn my car on is to clutch pop it, and when it is on, its hella weak like it has no battery wat so ever, my ebrake light dims and my battery light is on and dimming while the car is on..... i cant accerlate past 3rpm without having it struggle...... checked all my fuses theyre all good.... i tried looking at the wiring diagram posted in the tech section but i cant find that relay, and well its not color coded so i cant go by that, soo does anyone have a color coded wiring diagram for the s13?? and does anyone kno wat might be going on with my car?? do i need a new alternator??

The blue relay that's buzzing...where's it located at? Is it by the passenger side floorboard, next to the kickpanel by the ECU. If it is, that the ECU relay. Try replacing it with another relay. Somebody I know had this problem...damn if I can remember who it was....I know too many people with 240's!!! hahaha.
Anyhow, I'm trying to remember what he did to solve the problem. Don't think it's your alternator. You try testing all the main power fuses located inside the fuse box right next to the battery?? Get a volt / ohm / continuity tester and do the following:. 1) test the car battery with the engine off...Should be 12 volts 2) test the car battery while the car is starting..shouldn't drop less than 10.5-11 volts. 3). test the car battery with the motor running. Shouldn't be less than 14 volts. If it's less than 14 volts, then check the fuses and your alternator. A bad fuse could prevent your alternator from charging your battery. I believe there are two fuses on the alternator circuit...a 100 amp fuse and a 75 amp fuse....you'll find these fuses inside the fuse box next to the battery. Unbolt the 100 amp fuse / unplug the 75 amp fuse & test them both to make sure they haven't blown on you. If they test out okay, then chances are your alternator's died on you
Anyhow, give that a try...hope it helps...
ID