Alt for Terminator X Max

[64nailhead]

450 NA? If yes, then that sounds suspect.


Take a pic of your alternator plug. And a description of where the wires go from the plug.

You're describing a that you need a new alternator.

 

[Streetbu]

Leaving the voltage sensing alternator and wiring in is going to give you a headache, as you've already seen. JMO

 

[Zippymac]

450 NA? If yes, then that sounds suspect.


Take a pic of your alternator plug. And a description of where the wires go from the plug.

You're describing a that you need a new alternator.

Leaving the voltage sensing alternator and wiring in is going to give you a headache, as you've already seen. JMO

that was my suspicion - I have seen a few aftermarket voltage management solutions but they all reference the 140 A 4 pin alternator not the self regulating ECM integrated Altentator as in my case. leaving the sense wire off is supposed to default it to 13.8 volt charging on all the time whch is not good either.
so back to the issues - I have the wrong Map ... aka wrong alternator...

 

[64nailhead]

Not really. You have it wired incorrectly or the alternator is on the way out.

The alternator doesn’t give a rat’s *ss where the sense wire is hooked to. And fwiw, you can have it being controlled by the Holley just the same as a factory ECU controls it. The sense wire runs the regulator - period.

What alternator do you have? If you aren’t sure, then take a picture.

What do you mean you have the wrong Map? Manifold absolute pressure sensor?

 

[Streetbu]

The Terminator can't send out a PWM signal, which that alternator requires, that I know of. But I've been wrong before....

 

[64nailhead]

The Terminator can't send out a PWM signal, which that alternator requires, that I know of. But I've been wrong before....

Happel makes a harness just for that. He has tunes on the sloppy wiki page to do it. It’s a PWM output the same way a fan, meth pump or Nitrous solenoid works.

You need to use the alternator voltage as an input to PWM an output to the sense wire. No special alternator required.I can do it with my junkyard truck AD244.

 

[64nailhead]

Also, I can use an input to the Term X that is a dash switch (trans brake release) of any nature that will increase voltage to 16-17volts.
It’s been done by a lot of people. The issue is the length time - it gets HOT making more volts than it was designed to make.

 

[Zippymac]

that was my suspicion - I have seen a few aftermarket voltage management solutions but they all reference the 140 A 4 pin alternator not the self regulating ECM integrated Altentator as in my case. leaving the sense wire off is supposed to default it to 13.8 volt charging on all the time whch is not good either.
so back to the issues - I have the wrong Map ... aka wrong alternator...

 

[Zippymac]

Not really. You have it wired incorrectly or the alternator is on the way out.

The alternator doesn’t give a rat’s *ss where the sense wire is hooked to. And fwiw, you can have it being controlled by the Holley just the same as a factory ECU controls it. The sense wire runs the regulator - period.

What alternator do you have? If you aren’t sure, then take a picture.

What do you mean you have the wrong Map? Manifold absolute pressure sensor?

just being funny as in wrong city map ...

 

[Zippymac]

The alternator is the stock hi output alternator for the 2005 Tahoe - essentially brand new and is putting out some minimal voltage.
The issue it seems is there is nothing to tell the alternator what to do.