 123ignition to signal ecu?, or do I need a cranck trigger? |
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| barkamatic |
 Oct 16 2025, 03:36 PM
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Newbie  Group: Members Posts: 49 Joined: 6-March 23 From: Colorado Member No.: 27,211 Region Association: Rocky Mountains  |
Purchased a 123 ignition for a D-Jet but due to the difficulty of finding D-Jet parts I have decided to go with an aftermarket system. Probably a silly question, but could I use the FI firing triggers from the distributor for a crank position signal? Thanks in advance.
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| JeffBowlsby |
Oct 16 2025, 08:27 PM
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 9,090 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Gotta ask, what djet parts are you missing? Your engine year and size and is it stock or modified?
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| barkamatic |
Oct 17 2025, 02:02 PM
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#3
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Newbie Group: Members Posts: 49 Joined: 6-March 23 From: Colorado Member No.: 27,211 Region Association: Rocky Mountains |
the car is a '73 2.0. Stock. I received the car with some Weber 34's on it Bought a D-Jet system off the internet but it was pretty much all junk. MPS wont hold vacuum at all. Mismatch between ECU and other parts. Decided to go with a free standing unit.
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| chmillman |
Oct 17 2025, 03:45 PM
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#4
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Member Group: Members Posts: 168 Joined: 15-June 24 From: Switzerland Member No.: 28,183 Region Association: Europe
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QUOTE(barkamatic @ Oct 17 2025, 10:02 PM)  Bought a D-Jet system off the internet but it was pretty much all junk. MPS wont hold vacuum at all. Mismatch between ECU and other parts. Really not a good idea, I would never buy used D-Jet parts without testing them or having a right to return if they don’t work. Hope you didn’t pay too much for them… Putting a D-Jet system together from various used and new parts is possible, but a tricky operation with lots of traps to fall into if you don’t know what you’re doing - and it won’t be cheap either. There are a couple people in here that have put on “modern” EFI systems, there are some posts on that subject. |
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| barkamatic |
Oct 17 2025, 06:22 PM
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#5
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Newbie Group: Members Posts: 49 Joined: 6-March 23 From: Colorado Member No.: 27,211 Region Association: Rocky Mountains |
QUOTE(chmillman @ Oct 17 2025, 03:45 PM) QUOTE(barkamatic @ Oct 17 2025, 10:02 PM) Bought a D-Jet system off the internet but it was pretty much all junk. MPS wont hold vacuum at all. Mismatch between ECU and other parts. Really not a good idea, I would never buy used D-Jet parts without testing them or having a right to return if they don’t work. Hope you didn’t pay too much for them… Putting a D-Jet system together from various used and new parts is possible, but a tricky operation with lots of traps to fall into if you don’t know what you’re doing - and it won’t be cheap either. There are a couple people in here that have put on “modern” EFI systems, there are some posts on that subject. I think I can put together a stand alone for about the same price as a new MPS. And I will be working with new sensors, or wrecking yard finds. In other words, cheap. I can use a lot of stuff from the D-Jet: throttle body, runners, air filter, injectors. So not a total loss. I will check out the posts you mentioned. Thanks for your help. |
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Posts in this topic
barkamatic 123ignition to signal ecu? Oct 16 2025, 03:36 PM
dtmehall dude;
you have left the reservation!
keep yo... Oct 16 2025, 08:17 PM
barkamatic By the way, I have read pretty much everything you... Oct 17 2025, 02:05 PM emerygt350 I think it would be great to document how you do i... Oct 17 2025, 07:05 PM
barkamatic
I think it would be great to document how you do ... Oct 17 2025, 08:05 PM emerygt350
I think it would be great to document how you do... Oct 17 2025, 08:10 PM dtmehall the trigger points on the old D* systems were neve... Oct 17 2025, 08:48 PM Superhawk996
Probably a silly question, but could I use the F... Oct 17 2025, 08:51 PM barkamatic
Probably a silly question, but could I use the ... Oct 17 2025, 09:26 PM Superhawk996 Bottom line: D-jet injectors are bank fired and sh... Oct 17 2025, 09:47 PM barkamatic
Bottom line: D-jet injectors are bank fired and s... Oct 17 2025, 10:23 PM JeffBowlsby I have no predisposition about custom aftermarket ... Oct 18 2025, 01:39 AM chmillman I agree 100% with @jeffbowlsby about the downsid... Oct 18 2025, 03:49 AM barkamatic
I agree 100% with [b]@[url=http://www.914world.c... Oct 18 2025, 10:00 AM JeffBowlsby
With all due respect, evidently our reasons for o... Oct 18 2025, 10:26 AM emerygt350 My mustangs tbi could care less about position of ... Oct 18 2025, 09:42 AM Superhawk996
My mustangs tbi could care less about position of... Oct 18 2025, 10:11 AM barkamatic
My mustangs tbi could care less about position o... Oct 18 2025, 11:23 AM |
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