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Re: [GMCnet] Re: Looking for electric fuel pump control [message #367189 is a reply to message #367183] Wed, 13 October 2021 09:14 Go to previous messageGo to previous message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma:
Senior Member
Ken Henderson wrote on Tue, 12 October 2021 18:54
Matt,

Here's a list of the applications for what I'm in the habit of calling a
"Vega Switch":
https://1drv.ms/t/s!Ai1vXmS6UF0_gotF3OLJPne3NDCh2w

And here is the diagram of my pumps, as I drew it in 2010:
https://1drv.ms/b/s!Ai1vXmS6UF0_gotLYbNzGmIJMNYfvA?e=md8n9j

Ken H.
Ken,

Your diagram has lots of good ideas that I may borrow. The diode AND gate is a great start.

What I have been hoping to locate is the Vega (We had one back then) fuel pressure relay with an "On Delay" so it powers the fuel pump for a given time when the ignition is turned on. I have found references, but nothing with a working part number. That could eliminate the "prime" switch.

I really like the idea of the alternator output as a signal because it exists. It works great for my electric choke.

Fortunately, I have a lot of time before I tear into the coach for the winter re-fit.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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