Black94Z28

iTrader: (12)

Trying to figure this one out, my 94 acts like the alternator is bad but I had a new one put in, didnt solve the problem, volts slowly went from 12v down till the car died, took it back, had the stock one tested, that was good, put that back in, put another good battery in it, still same thing, checked fuses, nothing blown. I did a LS1 dash swap so I figured not having the gauge cluster hooked up had something to do with it, put the stock cluster back in, still had the same problem. It seems like even with a good battery and good alternator, that the car is just running off the battery till it wears itself out.

Any ideas? Im lost, all the wires seem fine (ground and power wires)

tillery

iTrader: (4)

Had the same problem this weekend-but on a ford. problem was in the ECM. It wasnt letting the voltage regulator do its job.

Black94Z28

iTrader: (12)

is there a way to test it?

tillery

iTrader: (4)

Im still trying to find out-and a way around it. Ask this in the tuning section. maybe better support there if our PCM controls the ALT voltage regulator.

scj

iTrader: (89)

i had this same problem on my old 3.4l firebird.. it was the one wire connector that goes into the alt.. it's the same on the lt1s and is the snap connector on the bottom. i wiggled it one day, and the voltage sprang back up, and everytime i would hit a bump it would pop loose again.I replaced the connector as the wire inside was loose. but it did the same as you're speaking of

Black94Z28

iTrader: (12)

Is the connector a dealer part or would an autoparts store have one?

slipstream1

I got my plug at the dealership for like $20.00