got any cel's? make sure the eld is working. also check the wiring to the alternator, make sure there are no bad connections. if you suspect a faulty connection on a wire do a voltage drop test on it, on the high current wire to the battery no more than .5V is acceptable. i forgot to mention, before you go pokin around get a wiring diagram of the system you're working on ALWAYS. if you understand how the system works you'll know what to look for with your dvm...... lmk what you find