Lateral-g Forums - altenator confusion

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waynieZ

07-20-2017 07:01 PM

I got in touch with GM today they told me to get a Metri pack 150 4 pin connector and put the wire from my harness in the B slot and plug it in . He said that's all it needs. When I told him the story about the Alt and plug difference he put me on hold and when he came back that was his reply. He sent me an e mail with a schematic and picture of the connector and told me to ignore the schematic.

I'll try to post it tomorrow.

andrewb70

07-21-2017 10:59 AM

Quote:

Originally Posted by dhutton (Post 662126)

LSA Connect and cruise instructions state that the use of the alternator control is optional and then they toss in this warning:

NOTE: If you are using the Chevrolet Performance or production LSA generator DO NOT plug in the generator control wire into the generator. This will result in the generator defaulting to only an 8 volt output above 3000 RPM.

I think you will be better off using the alternator you have and wiring in the appropriate plug. Holley sells one if you are unsure what plug to get.

Instructions here:

https://static.summitracing.com/glob...l-19257456.pdf

Don

Don,

I am just trying to wrap my head around this...and maybe follow GM logic...So the harness has a 2 pin connector, but are you saying that the ECU is not set up for PWM alternator control?

Why would they install the 2 pin connector?

Andrew

waynieZ

07-21-2017 11:04 AM

The two pin connector only has one terminal in it which they said, put it in the B slot and plug it in were his exact words.

andrewb70

07-21-2017 11:07 AM

Quote:

Originally Posted by waynieZ (Post 662644)

The two pin connector only has one terminal in it which they said, put it in the B slot and plug it in were his exact words.

So it sounds like GM messed up the connector and really should have installed the older style 4 pin connector. My GMPP kit that I got back in 2008 has a 4 pin connector but only one wire is in it (B slot...L terminal).

You may be able to remove the terminal from the 2 pin connector and slide it into the 4 pin connector that you get from Holley. Those Metripack 150 connectors (assuming the 2 pin is also a MP 150) should use the same terminals.

Andrew

waynieZ

07-21-2017 11:33 AM

That's what I was going to do, but it's about 2' too long so I'll shorten it to clean it up. I guess they make it that long in case your using the lower alternator location. Mine is on top.
Here's the number for GM power train and Performance 866 453412

andrewb70

07-21-2017 02:09 PM

Quote:

Originally Posted by waynieZ (Post 662647)

Wayne,

I am pretty sure that I have the terminals for the 4 pin plug. I know I used some to add a wire to that connector on the S terminal. If you want, I can send you a few of the terminals...provided you have the right crimping tool.

Andrew

waynieZ

07-21-2017 05:13 PM

Quote:

Originally Posted by andrewb70 (Post 662658)

Thanks Andrew I got the terminals I'll be doing that in the next couple of days. Thank you!

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