I'm revisiting my alky kit. Have had a few other projects pop up on my weekends and am just getting to it today.

​​​​​Issue: when I turn the car on and the kit is on at its default settings, the pump engages in low power mode. If I hit the test button, it kicks into high gear. The problem here is that the system should be powered on but the pump should not engage until the system begins to experience boost which it is not. This same effect occurs with the engine off and the key turned to power.

Now there are three points of wires which connect.
Pump has red, black, and bare wires.
Map sensor with 5v regulator has red, black and green wires.
The Pac module has red, black and white wires.

I can confirm that all red wires are interconnected. I can say the same for black wires also.

I am yet unsure of the bare pump wire and map green wire. I used spare spool of green wire for both. Both go up into center console. Only one goes to Pac. May have to pull console to figure which goes where.

For now, to test, I disconnected the spade for the Pac white wire and the green wire going to it. The issue with the pump running remains.

To me... If the green/white wire at the Pac is the signal wire and it is disconnected... And all the red and black wires are correctly connected... I don't know what might cause the pump to be running. Unless maybe the pumps bare wire is on a power lead and not a ground somewhere..

What other thoughts exist? Could the pump relay on the pump itself be bad? I do have a spare pump I can try to plug in.

Beyond that, I'm scratching my head right now.

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the bare wire should be connected to the white wire going to the pac unit... as far as the map I only used the green wire and tapped directly to the map on the car and did not use the map sensor in the kit

 

I opted for kit map since I have a mechanical vacuum sourced boost gauge so I just teed off of it.

For kicks I just plugged my spare pump in. Same scenario. Pump begins running despite no signal. I had replaced my clutch master cylinder a while back and thought the fluid may have caused a short to the pump. Check that one off the list.

 

If the pumps bare wire goes straight to the Pac white wire... Where would the map green wire go, or in your case where did your map feed connect to the Pac?

Edit: hmm... So what does the white wire at the Pac receive or send? I presumed it was the wire for the map signal. So above I undid it to test the system thinking I had an issue with the info received by Pac from the map sensor. That may well still be the case. Should the map green signal wire be connected to the bare wire which becomes the Pac white wire?

 

there is another breakout of wires that runs from the pac that has the wires for the turn on led and in that group of wires there is a green one for the map, I ran that green wire straight to the green wire on the map sensor on the intake manifold

 

Here's my garage note on what I've identified so far. Colors listed in center are just the wire color I used to run extensions from the pump harness and map in driver footwell to the Pac and controls in passenger glove compartment.

 

here's the diagram I got with my kit a few years ago

 

assuming you have all the wires connected in the correct spot I'm wondering if having the red map reference wire tapped into the red pump wire is what is causing your issue

 

Possibly. It has a regulator to feed it 5v. If that went I can see the issue.

Half my problem is my buddy did the driver side wiring for this while I did the gauges and modded the center console for pods and new head unit. So I'm partly reverse engineering his work. At this point, I'm tempted to gut the kit and start over from scratch so I know it is solid. I'm actually about to yank the center console so I can verify the bare wire connection and the map green wire feed.

 

Thanks for the diagram. One step closer.

​​​​​​What I had separated before was the white wire which is now reconnected.

This time I cut the map green wire. Turned key. Control box shows red light "on" and the pump is silent. If I connect the green wire, the pump kicks on. So I'd say the issue lies with the kit map and/or its wiring. Likewise, currently if I hit the test button the activation light turns red.

I'm going to see about bypassing that map piece and using the one off the back of the manifold and run a wire around and in.

Note: any issue of it is not the factory map? 2bar vs 3bar etc?

Ordered a map extension wire that I'll have for Wednesday. The existing piece would be hard to splice into without damaging it currently. So by the end of the week the kit will be fed from the engine sensor. I ran the number and it is an acDelco 2 bar. For now this is on hold, but I'm feeling good that the issue has been related to the sensor orbits wiring under the dash.
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