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Old 11-09-2021, 07:04 AM   #121
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1974 20' Argosy 20
Richmond , Kentucky
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Originally Posted by Boom Sounds View Post
Without going too off topic, what is the best approach for me to try and find a spare/matching ECM for my 1991 250? It feels like a good spare to have on my travels.
Nick,

There are two parts involved. One is the ECM itself and the other is the Memcal.


For my Argosy I used a 1994 ECM with part number 16248378 and the Memcal was BYYC.

To get the Memcal info you might have to remove the cover from the ECM and read the Memcal number.

The ECM is the computer and the Memcal is the program that is ran by the ECM.

I found all of my parts on ebay.

Brad
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Old 11-09-2021, 03:07 PM   #122
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1991 25' Airstream 250
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Originally Posted by bkahler View Post
Nick,

There are two parts involved. One is the ECM itself and the other is the Memcal. For my Argosy I used a 1994 ECM with part number 16248378 and the Memcal was BYYC. To get the Memcal info you might have to remove the cover from the ECM and read the Memcal number. The ECM is the computer and the Memcal is the program that is ran by the ECM. I found all of my parts on ebay.
Brad
Thanks Brad
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Old 11-25-2021, 08:22 AM   #123
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1994 30' Excella
1992 35' Airstream 350
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Brad, does your Argosy have an electric fuel pump? If not, than this module would do nothing for you. If you do have an electric fuel pump, then I can send you a housed board with just the pigtail wires coming out. You can then just splice those wires into your existing harness.

I currently have the module side pigtail connector but not the mating connector that's normally on the main harness. If you want, I can try to find the mating connector and supply you with that but you'll still need to splice that into your harness.

I received your latest version and installed it! Works perfectly, thanks for all your effort.
Question: This module should also work for a carburetor setup, if you have a rear electrical fuel pump, right? A little wiring is all that is needed. The module itself does not depend on the ECM to function, it is pretty much stand alone. Or am i missing something?
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Old 11-25-2021, 08:46 AM   #124
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I received your latest version and installed it! Works perfectly, thanks for all your effort.
Question: This module should also work for a carburetor setup, if you have a rear electrical fuel pump, right? A little wiring is all that is needed. The module itself does not depend on the ECM to function, it is pretty much stand alone. Or am i missing something?
Peter, with a carburetor setup on our coaches that have an electric pump, the pump is typically energized all the time. On a TBI the pump is energized for 2 seconds then is turned off until oil pressure is verified (i.e. engine is running).

I supposed technically you could install one of Julius's modules but all you would really need to do on a carbureted engine is leave the ignition switch on until it built up pressure.
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Old 11-25-2021, 09:48 AM   #125
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1994 30' Excella
1992 35' Airstream 350
Austin , Texas
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Originally Posted by bkahler View Post
Peter, with a carburetor setup on our coaches that have an electric pump, the pump is typically energized all the time. On a TBI the pump is energized for 2 seconds then is turned off until oil pressure is verified (i.e. engine is running).

I supposed technically you could install one of Julius's modules but all you would really need to do on a carbureted engine is leave the ignition switch on until it built up pressure.

Ok, I understand, however, a safe setup would be to tie the aftermarket rear electric fuel pump to the oil pressure switch. In that case the module would come in handy.
I believe the late 80's carbureted engines with the factory rear fuel pump have that safety feature, which must include a temp module? Anyone?
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Old 11-25-2021, 12:51 PM   #126
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1992 36' Land Yacht
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For what it's worth, I do now have a standalone module named the Brad Module that can be added to any harness. The module comes with a stock connector for those that don't have the modules box and have the stock TBI harness or just a three-wire pigtail. For the three-wire connection you just need to connect to +12V ignition, ground and an output to the fuel pump. I'll be sending out Brad's unit on Friday.
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Old 11-26-2021, 06:13 AM   #127
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Thanks, I'm in. I'll PM you. Great work, thanks for all the effort. Top quality work.
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Old 11-26-2021, 07:12 AM   #128
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Just let me know if you need just the replacement board or a completely housed module.
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