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| ECM upgrade (1227730) for stock 2.8 (Page 70/107) |
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3.6lvvt6spdgt
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AUG 24, 11:03 PM
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ok so im not as close as i thought.
D5 tan / blk est bypass move to BC7 must be disconnected to set base timing, see note1 below
note1: A single wire weatherpack connector (similar to what is used for the O2 sensor) must be wired into this circuit so the circuit can be disconnected in order to put the ignition system into base timing mode so the base timing can be set using a timing light.
where do i install the wheather pack connector?[This message has been edited by 3.6lvvt6spdgt (edited 08-25-2008).]
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3.6lvvt6spdgt
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AUG 25, 02:49 AM
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Darth Fiero
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AUG 25, 12:05 PM
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| quote | Originally posted by 3.6lvvt6spdgt:
ok so im not as close as i thought.
D5 tan / blk est bypass move to BC7 must be disconnected to set base timing, see note1 below
note1: A single wire weatherpack connector (similar to what is used for the O2 sensor) must be wired into this circuit so the circuit can be disconnected in order to put the ignition system into base timing mode so the base timing can be set using a timing light.
where do i install the wheather pack connector?
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You can put the single wire weatherpak connector in the bypass wire out by the distributor or inside the car by the ECM; your choice. Just remember it needs to be disconnected when you set base distributor ignition timing (puts ECM in set timing mode). Now if you are going to put this connector inside the car near the ECM, then you don't need a weatherpak connector; you could just use male/female blade connectors that can be crimped on which can be purchased at any auto parts store. I strongly recommned the use of sealed weatherpak connectors in the engine compartment to keep the connection from corroding since it will be exposed to the elements out there.
Concerning the knock sensor, if you read my wiring instructions it will tell you that you can actually use one of the Fiero EGR wires for this circuit and just tap into that wire out in the engine compartment to run down to your knock sensor -- will save you the trouble of having to add another wire to the harness. You will end up doing the same for another Fiero EGR wire to hook up the cooling fan to ECM control (also explained in the wiring instruction .pdf).
If you do this swap and don't use the digital EGR and don't hook up the electronic EVAP control solenoid, you should still end up having to add about 2 ground wires to the existing Fiero wiring harness. These two additional grounds are INJECTOR DRIVER grounds that connect the ECM to the engine block. Somebody earlier in this thread did this swap and forgot to hook these additional grounds up which resulted in a NO START condition. So make sure you don't skip this step or you will have issues.
-ryan
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fieroluke
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AUG 27, 08:52 AM
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Hi,
this is an interesting upgrade indeed...
I would be looking to realtime update capabilities using a flash instead of EPROM, also through modifying the communication protocol (download without EPROM burning is so nice...)
I found the schematics on the web, so this seems doable, but I have not found a disassembly yet. Before I have to start from scratch, I'm sure someone has a (commented?) disassembly. Is that so? I have searched the web, but haven't come up with any results (I didn't search intensively though, I admit).
Anyone?
Best regards,
Oliver------------------
Visit my website: www.fieros.de for lots of technical and other Fiero related information
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3.6lvvt6spdgt
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AUG 28, 05:28 AM
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| quote | Originally posted by fieroluke:
Hi,
this is an interesting upgrade indeed...
I would be looking to realtime update capabilities using a flash instead of EPROM, also through modifying the communication protocol (download without EPROM burning is so nice...)
I found the schematics on the web, so this seems doable, but I have not found a disassembly yet. Before I have to start from scratch, I'm sure someone has a (commented?) disassembly. Is that so? I have searched the web, but haven't come up with any results (I didn't search intensively though, I admit).
Anyone?
Best regards,
Oliver
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step one take it apart
step two rewire with diagram
step three put it back together
lol
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fieroluke
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AUG 28, 06:44 AM
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By "disassembly" I don't mean taking apart the ECM unit of course, I was talking about the source code for the program contained inside the ECM.
-Oliver------------------
Visit my website: www.fieros.de for lots of technical and other Fiero related information
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Madess
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AUG 29, 10:47 PM
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ok, I just completed my 7730 conversion - (that took forever - my fault though - too many projects) and I have a strange issue now.
my tempurature gauge doesn't work now??? Any thoughts?
thanks
Matt
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Pyrthian
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AUG 30, 02:22 AM
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| quote | Originally posted by Madess:
ok, I just completed my 7730 conversion - (that took forever - my fault though - too many projects) and I have a strange issue now.
my tempurature gauge doesn't work now??? Any thoughts?
thanks
Matt |
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well, the temp gauge wire does not get changed in anyway for the 7730 swap
follow the wires, make sure its plugged in good, maybe test with a dummy resistor
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3.6lvvt6spdgt
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SEP 01, 02:58 AM
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finaly got the inside back together. 
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Madess
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SEP 01, 08:39 PM
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Darth, I finally got my 7730 conversion done with your chip (my fault I took so long, not yours). I am having some issues with WOT, which I use a lot because I am a psycho. Could I come up one day and have you tune the car? Do you have time, or should we do the remote thing, and I send you some number. If you would rather take this off list, just use my list email and let me know.
Thanks.
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