I'm trying to help out 1990jmcturbo on his turbo build and we've hit a wall and this is all that's left before we can start tuning. His alternator isn't doing a thing and we're not sure what to try next. I've verified the wiring is correct, we had 2 wires hooked up originally, pin 1 to the bulb circuit, pin 3 to the pcm wire. will not charge. Verifed pin 3 has voltage so it should be triggering on. We then tried giving the middle wire voltage as that's what's on hellions website, also no change. Tried upgrading his main cable from the alt to the battery from the 8 gauge we had to 4gauge automotive cable, still nothing. So at this point wiring has been checked and triple checked. We also checked voltage right off the alternator and it's just reading battery volts.
So he took the alternator off and had orieleys check it(its an orielys alternator) it passed their test, he then had autozone test it, also passed theres. His battery he had checked from autozone and it passed. At this point we're out of ideas. He's planning on just buying a better brand alternator but figured I'd post to see if anyone has had any other issues or if there's some other suggestions to try.
Cliff notes: verified all wiring, not charging. Tested voltage right off alternator, not charging. Had alternator and battery tested, both passed. What's left?
So he took the alternator off and had orieleys check it(its an orielys alternator) it passed their test, he then had autozone test it, also passed theres. His battery he had checked from autozone and it passed. At this point we're out of ideas. He's planning on just buying a better brand alternator but figured I'd post to see if anyone has had any other issues or if there's some other suggestions to try.
Cliff notes: verified all wiring, not charging. Tested voltage right off alternator, not charging. Had alternator and battery tested, both passed. What's left?