Gas mileage improvement

[richshoop]

What kind of improved gas mileage can I expect from a Howell EFI system on my 76 coach with a 455 and a quadrajet?

----- Original Message -----

From: "Bob Dunahugh"
To: "gmclist"
Sent: Monday, September 18, 2017 7:03:39 AM
Subject: [GMCnet] Found the source of all my electrical issues. ?

Went and did my normal pre drive check. No brake lights. Found that the issue was the 39 year old brake light switch. Replaced that switch. Headed off to Elkhart. The Howell EFI worked PERFECTLY all the way. Great mileage. Got to within 45 miles of the GMCMI rally. The new brake light switch from China failed. Oh well. Got 500 miles out of it. Went to lower the right rear air bags to take a shower. T then the two compressor system quit working. Then during the night. Our furnace stopped working. I expected some of this because this GMC sat next to a cornfield in Iowa from Oct of 1995 to Oct of 2015. But now it appears that I've pissed off the electrical god EL. That has to be my problem. RIGHT? Bob Dunahugh 78 Royale Mouse House
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[emerystora]

Not much but there are a lot of other benefits of fuel injection. However if you use the ebl system and set it up with a speed sensor added you can drive in a "cruise mode" with a much higher air/ fuel ratio and you will have fuel savings.

Emery Stora

>
> What kind of improved gas mileage can I expect from a Howell EFI system on my 76 coach with a 455 and a quadrajet?
>
> ----- Original Message -----
>
> From: "Bob Dunahugh"
> To: "gmclist"
> Sent: Monday, September 18, 2017 7:03:39 AM
> Subject: [GMCnet] Found the source of all my electrical issues. ?
>
> Went and did my normal pre drive check. No brake lights. Found that the issue was the 39 year old brake light switch. Replaced that switch. Headed off to Elkhart. The Howell EFI worked PERFECTLY all the way. Great mileage. Got to within 45 miles of the GMCMI rally. The new brake light switch from China failed. Oh well. Got 500 miles out of it. Went to lower the right rear air bags to take a shower. T then the two compressor system quit working. Then during the night. Our furnace stopped working. I expected some of this because this GMC sat next to a cornfield in Iowa from Oct of 1995 to Oct of 2015. But now it appears that I've pissed off the electrical god EL. That has to be my problem. RIGHT? Bob Dunahugh 78 Royale Mouse House
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> GMCnet mailing list
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> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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[justin brady1]

I'm with Rick.
I have never seen anyone have so many electrical problems. It seems every component you put on fails almost immediately.
I'd look really closely at the alternator and your grounding situation before you fry that expensive ECU.

Either you REALLY did something to piss off the gods or you're frying parts!
--
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455