Fuse box Relocation Issue - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bubbafire88 · 05-01-2024, 09:12 AM

My Camaros alternator failed a few weeks ago, and I thought it was a good idea to finally relocate my fuse box to inside my glovebox.
Finished up, everything works well except I am having an issue with my brand new alternator.

Alternator was charging the battery very sporadically, while test driving, pretty much constantly draining the battery voltages. I checked all grounds, all new wiring, fuses etc. nothing would work. So as a last Hail Mary I decided to unplug the 2 wire harness connector that is on the back of the alternator so it can default to its 13.8 commanded voltage. Boom. Car is at a constant 13.5 volts now, and driving better.

Originally I thought the problem had to be in the alternator wiring itself. I used 1 long run of 4 guage from the alternator all the way back onto the battery post that then runs into a kill switch. But since the alternator is charging the car “properly” I have since dismissed it.

I’ve checked the wiring, grounds, and where it connects into the ecu, so I guess the ecu isn’t commanding the proper voltage to the alternator. Till I find out a solution would I harm anything with the alternator unplugged?

SlowLS1 · 05-01-2024, 09:46 AM

It won’t hurt it. It will just always charge at 13.7-13.8 and will have a fault. I have personal experience with this and my LS1 swapped Colorado.

Bubbafire88 · 05-05-2024, 06:18 PM

Quote:

Originally Posted by SlowLS1

It won’t hurt it. It will just always charge at 13.7-13.8 and will have a fault. I have personal experience with this and my LS1 swapped Colorado.

Good to know it won’t hurt anything, thank you,did you ever find a fix?

05-01-2024, 09:12 AM	#1
Bubbafire88 Drives: 2010 Camaro ss A6 "Chief" Join Date: Dec 2020 Location: Pearland texas Posts: 55 View My Garage	Fuse box Relocation Issue My Camaros alternator failed a few weeks ago, and I thought it was a good idea to finally relocate my fuse box to inside my glovebox. Finished up, everything works well except I am having an issue with my brand new alternator. Alternator was charging the battery very sporadically, while test driving, pretty much constantly draining the battery voltages. I checked all grounds, all new wiring, fuses etc. nothing would work. So as a last Hail Mary I decided to unplug the 2 wire harness connector that is on the back of the alternator so it can default to its 13.8 commanded voltage. Boom. Car is at a constant 13.5 volts now, and driving better. Originally I thought the problem had to be in the alternator wiring itself. I used 1 long run of 4 guage from the alternator all the way back onto the battery post that then runs into a kill switch. But since the alternator is charging the car “properly” I have since dismissed it. I’ve checked the wiring, grounds, and where it connects into the ecu, so I guess the ecu isn’t commanding the proper voltage to the alternator. Till I find out a solution would I harm anything with the alternator unplugged? __________________ TSP stage 2 cam \| aFe cai \| Speed Engineering Long tube 1 7/8 catless headers \| Self Ported TB \| Circle d 245mm 4400 stall \| ZL1 NPP Cat-back exhaust \| 3.91 gears \| Full BMR suspension/bushings \|VMS drag pack 17x10, 17x4\| Granatelli Motorsports pro stock spoiler\| Heritage Grille \| Zl1 Addons front bumper conversion kit \| Whole lotta weight reduction

05-01-2024, 09:46 AM	#2
SlowLS1 Drives: 2010 Camaro SS , 2011 Colorado LS1 Join Date: Jan 2022 Location: Greenville, SC Posts: 854	It won’t hurt it. It will just always charge at 13.7-13.8 and will have a fault. I have personal experience with this and my LS1 swapped Colorado. __________________