Vz ls1 draining battery while driving/running

[Gregbunney4118]

G’day everyone sorry for the long read

I’m having troubles with my vz and I’m hopping someone on here can steer me in the right direction.

So about 2 months ago I was driving home from work, sitting at a set of light my dash turned off then back on again, thought it was odd was going to have a look once I got home but the light turned green and I went to accelerate but the engine had lost its power little like limp mode. I pulled over turned car off and wouldn’t start back up, had to tow it home.

Later that week put battery on charge drive it around the block a couple time nothing happened then at about 15 minutes it’s started again, limped back home threw multimeter on the battery and it was showing 9 V.

I then replaced alternator didn’t change, two different batteries, replaced every single relay in the car. I have checked for Continuity from alternator to battery and it’s good. Checked every single fuse in the car everything it’s looking a good, I have checked the earths. I have unplugged climate control/fan speed sender thing as been told that can short circuit, have unplugged abs module.

I have run the car and pulled non important fuses out to see if there a change e.g lights, acc sockets, a/c, blower fan, power seats, powered windows nothing changed.

 

[lout]

is the red charge light on when running

 

[krusing]

Get is scanned for codes,
if the MIL isn't on, possibly it's a silent DTC,
or may even have one in its history.

What Voltage is the charge rate ?
Should be at least between 14.1 > 14.7 (average 14.4)

 

[Fu Manchu]

Check the earth where it bolts to the engine.

 

[Fu Manchu]

Get a battery tester. That will give you a picture of the charge circuit in a full and complete way. For $50, you’ll identify the fault and I’m going to guess it is the alternator.

Multimeter won’t do what a charge circuit and battery tester does.