1996 gts voltage problems

[rusty96]

I replaced the battery and put in a new alternator and I'm having problems with the voltage not being where it should be. She will start up and run but the voltage keeps dropping. The car is running off the battery and the PCM isn't throwing any codes. Any ideas what it could be

 

[Doug Supercharged Vipers]

I replaced the battery and put in a new alternator and I'm having problems with the voltage not being where it should be. She will start up and run but the voltage keeps dropping. The car is running off the battery and the PCM isn't throwing any codes. Any ideas what it could be

Yes, the car is running on the battery only. It appears you may have a problem with the PCM not providing charge. May I ask if you replaced the alternator with a rebuild or new? I can service the PCM if required.

Regards,
Doug

 

[Steve-Indy]

Doug, could the plug from the alternator be the problem?

 

[Doug Supercharged Vipers]

Doug, could the plug from the alternator be the problem?

It could be if there is a continuity issue with it- just inspect it carefully. Let me know and good luck!

 

[rusty96]

I put a rebuilt one on that I got from O'Reillys auto parts. I did find out that the voltage regulator is in the pcm. Some one said I might need to get the pcm flashed. And that might fix the problem. Does that sound right.

 

[Doug Supercharged Vipers]

I put a rebuilt one on that I got from O'Reillys auto parts. I did find out that the voltage regulator is in the pcm. Some one said I might need to get the pcm flashed. And that might fix the problem. Does that sound right.

Not really Chad, there's more to it than that. If you would like I can explain to you better via phone (if that's ok with you?).
954-434-9356 -Doug

 

[SquadXX]

Same thing happen to me, twice. Was the PCM, even though im running a AEM. One of the boards was fried; got it replaced and no issue.

 

[rusty96]

What is a AEM?

 

[JST2CRZY]

http://www.aemelectronics.com/

What city/town are you in? Nice to see another B/W in the area.

 

[rusty96]

I am in Tampa, you also have a 96 blue/white. There doesn't seem to be to many left out there

 

[Dan Cragin]

Another thing to check is the connection at the jump start terminal at the fuse box. If that gets loose all kinds of weird things can happen.

 

[rusty96]

Originally when the battery died I try to open up the door and when I pushed the door release button it started making a clicking noise because the battery was dead. So I disconnected the jump start terminal to kill the power to the car. Could that have anything to do with resetting the PCM or caused any other problems.

 

[ViperJohn]

I am in Tampa, you also have a 96 blue/white. There doesn't seem to be to many left out there

I wish i had seen this thread sooner. I have a spare 96 GTS computer and I was down in Florida for the board meetings and Rolex race recently, I would have gladly brought down to have you try it to see if it fixed your problem. Hindsight is 20/20.....sorry. Hope you get this resovled soon.

 

[rusty96]

Thank you everyone for your help,she is up and running good