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| ECM upgrade (1227730) for stock 2.8 (Page 84/107) |
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fieroluke
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DEC 30, 08:40 AM
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BA12 is grounded inside the ECM, so it shouldn't matter if you ground it inside the ECM or run a wire to ground directly.
Best regards,
Oliver
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Darth Fiero
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DEC 30, 11:39 AM
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| quote | Originally posted by americasfuture2k:
merlot pointed out to me on the DIS connections, on the 2 pin plug, the ground, pin a, says to connect to engine ground but in the beretta 7730 diagram, it shows it connecting to BA12. thats the only one i can see off the top of my head, ill let you know more as i go along. that could be whats causing my not firing up issue. im tired....
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BA12 terminal on the 7730 ECM is a ground input to the ECM. This MUST be connected to engine ground. However, my 1992 Beretta diagrams ALSO show the DIS pin A (2-pin connector) connecting to ECM terminal BA12; so it must be an error in the wiring diagram (because on another page of the diagram, it shows BA12 connecting to engine block ground). In any case, the DIS module pin A as well as ECM terminal BA12 must both be connected to engine block ground. My wiring instruction sheet tells you to wire it all up in this way.
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americasfuture2k
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DEC 30, 12:25 PM
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hmm, i didnt have anything in BA12 from what i remember. more rookie mistakes. i fail as an electronic tech. oh well, you live you learn. sometimes the hard way. ------------------
First LX9 Fiero GT, 1987
If you can't fix it with a hammer, you've got an electrical problem
Fiero's are people too. We pay just as much attention to them, if not more than our loved ones 
My Fiero Fuel Economy
Videos of My GT
Google Videos of My GT
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Darth Fiero
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DEC 30, 12:33 PM
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| quote | Originally posted by americasfuture2k:
hmm, i didnt have anything in BA12 from what i remember. more rookie mistakes. i fail as an electronic tech. oh well, you live you learn. sometimes the hard way.
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Don't be hard on yourself. If wiring were easy, cavemen could do it.
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americasfuture2k
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DEC 30, 02:14 PM
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Pyrthian
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DEC 30, 03:12 PM
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lol - yup
my 7730 w/DIS conversion also didnt fire right away due to a wiring ommision.....and I am a wiring genius & electronics guy.....
took almost 2 weeks to find what I missed......lousy ground wire....grrrrrr
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americasfuture2k
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DEC 31, 08:13 AM
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chrismclubm
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DEC 31, 04:33 PM
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Step-by-step instructions would be so nice. Anyone out there brave enough to write a set of instructions and parts needed to complete this project; after all, most of us have 2.8's sitting in the back of our cars - we too want to make them "[act] like a new engine found in today's new cars!"
------------------
1986 GT Fiero Owner & Enthusiast
For Fiero updates, visit my site and don't forget visit our google ad sponsors
http://educatorstop15.com/fieropage.htm
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americasfuture2k
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JAN 13, 01:43 PM
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Darth Fiero
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JAN 13, 02:25 PM
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| quote | Originally posted by americasfuture2k:
can anyone tell me if when doing the ALDL test, does the elec fan come on? if it does, then i think i have another problem to diagnose....
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Not always; but in your case I believe it should (when shorting the A and B terminals of the ALDL connector together).
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