another charging issue topic

[moparman89]

OK..so I know there has been other threads on this,but I'm really not finding a answer...so heres my problem. Many of you may know that I have converted a 81 crew cab with a 92 cummins 5spd...so everything got tranferred over.

MY battery is not getting charged... First off I had the alternator tested and the battery...checked out fine, both are good and working.

So how Do I know if the crank sensor is bad or not?

My AC and the CC are not plug in...would this cause a problem?

I have read about installing a voltage regulator...DO I NEED SOME KIND of Relay? IF so exactly what do I need and how do I wire up the relay?

How do I know if the problem is in the PCM or not? If the problem is not in there will it hurt to hook up the external regulator?

Thanks

[921stgen]

Testing the crank sensor. http://www.cumminsforum.com/forum/89-93 ... erid=23457
http://www.dieseltruckresource.com/dev/ ... ostcount=3
Some more info. http://www.dieseltruckresource.com/faq/ ... lynewfaq=1
http://www.dieseltruckresource.com/dev/ ... ostcount=4

[moparman89]

well I cured the problem for now..went ahead and installed a external voltage reg....and it worked..charges like a champ! Still looking for a ecm though so I can get the rest of the stuff working?

[Fastback66]

I am having a similar issue on my Crew cab swap. Maybe it's not ment to be. I think I need a PCM though.