Was wondering if anyone can provide me with a good schemtics of my cars charging system which is a 89 pontiac GTA trans am 5.7L V8 350 TPI. The alternator fries regulators because I have either a wire hooked up wrong or a short on the plug. I need pinout of the connector of the alternator S F L P and where they go. My alternator is a 140amp brand new oem style and it is the right alternator for my car according to the seller off ebay. It only costed me $48 to get it fixed same day at place that fixes them. The reason I had to rewire alternator back to stock is because of the 2 batteries I had in the car way before needed a battery isolator and it called for rewiring the alternator plug wires. Well i restored it back to stock and it keeps frying it so I must of wired the plug wrong. I only have 1 battery now since this happened and everything else is factory. This car has been the biggest pain in the *** .

 

I fixed it, I was able to wire it up correctly and no frying hehehe. You all should see all I had to fix with the wiring in this car. I completely restored 5 major circuits which were shorted. My crtsy fuse used to pop cause of a short in its circuit, but I was able to track in down along the factory harness under the dash. Isolated the short and restored power to my horn, power door locks, interior dome light, cigarette lighter, and power mirrors.