Some thinking..
You have a power injection bulb with the system. It will intensify as the boost comes up. This will let you know if the map sensor is working or not without a doubt. Also this tests the driver in my controller.
Also you didnt mention if the "turnon" LED was firing at 4 PSI boost. These two tests can confirm the MAP sensor.
And make sure the purple/violet wire hasnt been grounded by accident. This will stop the controller from increasing its output.
So if the power injection bulb goes from dim to bright as the boost comes up.. and you still have no alcohol output. The pump is shot.
Why??? Dont know. But as soon as you send it back I will
I can send you another pump out as soon as you call. Or if you dont want/cant call, send your pump back, i'll swap it out for you.
Then disect it and post why it happened. I havent had any bum pumps yet so i'm really curious. And know you been playing with mixing. Shouldnt affect it

but wont know till I have it.
Hope this post helps.
Your move
