SC430 alternator upgrade issue
#1
SC430 alternator upgrade issue
Posted on the BIG 3 thread but I haven’t got a response.
Installed an brand new SC430 alternator from Autozone on my 92 SC300. Switched out to an oval plug and trimmed the bracket to make it bolt up.
Now when i go WOT the batterie light comes on/flickers.
I have a 1/0 gauge wire from the batterie in the trunk going straight to the alternator and added a 1/0 gauge ground wire from the alternator case to chassis. I also installed a new serpentine belt.
Is it possible I didn’t wire “L, IG, S” correctly?
Installed an brand new SC430 alternator from Autozone on my 92 SC300. Switched out to an oval plug and trimmed the bracket to make it bolt up.
Now when i go WOT the batterie light comes on/flickers.
I have a 1/0 gauge wire from the batterie in the trunk going straight to the alternator and added a 1/0 gauge ground wire from the alternator case to chassis. I also installed a new serpentine belt.
Is it possible I didn’t wire “L, IG, S” correctly?
#2
Joe, I'm sorry I didn't get a shot of the connector in the reference picture I posted for you in the Big 3 upgrade thread.
Take a look at this screenshot from the 1997 Supra Turbo electrical TSRM and check it against your wiring. The alternator pin assignments should be the same between the Supra MKIV and SC430. It's a long shot but perhaps you put wires 1 and 3 in the wrong places?
Take a look at this screenshot from the 1997 Supra Turbo electrical TSRM and check it against your wiring. The alternator pin assignments should be the same between the Supra MKIV and SC430. It's a long shot but perhaps you put wires 1 and 3 in the wrong places?
#4
Fail
i swapped the two pins and still got the flickering batterie light. I went and bought a reman sc300 Denso alternator and everything is back to normal. Such a waste of time and money. POS autozone probably sold me a faulty alternator. Can’t take it back because I altered the bracket. Oh well.
If it ain’t broke, don’t fix it.
i swapped the two pins and still got the flickering batterie light. I went and bought a reman sc300 Denso alternator and everything is back to normal. Such a waste of time and money. POS autozone probably sold me a faulty alternator. Can’t take it back because I altered the bracket. Oh well.
If it ain’t broke, don’t fix it.
The following users liked this post:
KahnBB6 (12-30-20)
Thread
Thread Starter
Forum
Replies
Last Post
KahnBB6
Performance & Maintenance
12
06-28-21 03:47 PM