Installed new alt isnt charging

[jdmferio13 10+ year member]

So I finally went ahead and installed my ho alt.Got everything in and cranked it over and started up.I noticed the my meter only reading 12.1 so I checked both rear and front batts with dmm and 12.1.Need help not sure what it might be.The alt is a db linc 200 amp alt.

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[WOT]

And its output+ goes straight to your battery.....??

 

[Stalin-ohaulic]

Did you rehook the harness to it? There's more than mounting it and connecting the postive wire to the batt. There is also the wire that the computer uses to engage the alt. That's probably not hooked up.

 

[KyleBechtold 5,000+ posts]

So I finally went ahead and installed my ho alt.Got everything in and cranked it over and started up.I noticed the my meter only reading 12.1 so I checked both rear and front batts with dmm and 12.1.Need help not sure what it might be.The alt is a db linc 200 amp alt.

mine is having issues aswell.. what does it do when you rev?

 

[jdmferio13 10+ year member]

the harness plug is connected.So I tried turning it on and disconnecting the batts and the car shut off so its either the alt or the plug that goes to it.Im not sure but the alt is brand new dont know

 

[WOT]

pics of connections

 

[power-fanatic07 5,000+ posts]

that sucks

 

[bhsdriller 10+ year member]

was your old alt working fine when you replaced it?

 

[jdmferio13 10+ year member]

yes old alt was working fine for being a 70 amp alt now I install this 200 amp alt and nothing Im thinking there might be a short dont know but If so Im selling all my shit this audio shit is starting to piss me off.

 

[jdmferio13 10+ year member]

mine is having issues aswell.. what does it do when you rev?

sounds all bogged out but doesnt shut off dont know

 

[KyleBechtold 5,000+ posts]

sounds all bogged out but doesnt shut off dont know

idk if they even have warranties.. but something is all sorts of weird with mine..

 

[lileddie1127 10+ year member]

Charge your batts (fully charged), 12.1 can smoke that alty really quick.

 

[jdmferio13 10+ year member]

well the alt isnt working so i dont think it can smoke can it.I mean once the batts are un hooked the car shuts off.

 

[lileddie1127 10+ year member]

Check your fuses, grounds, and if there is any corrosion on the harness clean it. I spliced my sensor wire usually yellow and attached it with a ring terminal on the positive post on my mechman. If you figured it out, seriously charge your batts to at least 12.8 before starting your car or you can smoke the alty.

 

[jdmferio13 10+ year member]

yeah im going to check it tommorow see if i might have pinched something or check it out ill let you know is there away i can see if the alt is charging with the dmm before the harness to the batt