i have a 91 rs camaro. the plug for the altenator was gone during engine swap to a carbuerated 355. i got a new plug from oreillys on the plug it has 4 letters on the side where the wires come out of the plug. the letters are s f l p. on the s pin there is a red wire. on the f pin there is a black wire. on the l pin there is a brown wire. on the p pin there is no wire. my question is where exactly does these go to and is there suppose to be a wire from the p pin in the plug. i have tried and read everything but cant get it charge the battery. new battery and new altenator. just about ready to pull my hair out. any help would be most appreciated.

 

i dont know about the wiring but i do know that the alternator charging circuit is wired through the electric fan fuse. i believe that the fuse is a 25 amp or so. check the fuse i have seen a lot of people with no charging voltage having that fuse blown.

just a thought though

 

i needa double check but i know the brown/white wire( IIRC ) is the one that needs IGN source to excite the rectifier aka.... you need it to charge. lol

**** tomorow ill copy my wiring diagrams if they arent ruined by grease for you to see

 

if you could get me that wiring diagram it would be greatly appreciated. i have been playing with it and its driving me crazy. if i jump it off it will run for a little bit and then it will die. then it is hard to start with the jumper cables. you have to charge it with jumper cables for a while. and also check the fan fuse it is good.

 

The S pin(red wire) run to the starter,its attached along with the positive cable.Its a fusible link so make sure it not broken.The F Pin(Brown wire) runs to the fan fuse.The I Pin(Black wire) it runs to a junction block usually near the side of the radiator on the support.It too has some fusible links..but this wire doesnt have any on it.It only supplies voltage back to the battery.I think you have your I and F pin mixed up.I dont see any other wires connected.

 

if its too small i can email the hugemongous one to you

 

thank all of ya'll for your help i got it charging on the plug the brown and black wire were backwards. i can finally enjoy it.