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Ecoleft |
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#1
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
I'm looking for an ECU to go on a 1975 1.8 engine. However when I look for a computer theres about 100 different numbers and letters with it and I have no idea how to check with computer will work with my engine. I have two possible computers to use and they both end with a different letter. I have no idea how to tell which one needs to go on my car. The next question would then be what jets do I need. I have two different type of jets. An I jet and an L jet.
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JeffBowlsby |
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#2
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914 Wiring Harnesses ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,549 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None ![]() ![]() |
280 000 104 = CU65X = 1974 1.8L
280 000 111 = CU66X = 1975 1.8L |
dr914@autoatlanta.com |
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#3
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 7,900 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None ![]() |
and if you are uncertain that the unit is bad, you can always send it here to service and we will test for you
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DickSteinkamp |
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#4
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Senior Member ![]() ![]() ![]() Group: Members Posts: 500 Joined: 27-February 17 From: Bellingham, WA Member No.: 20,876 Region Association: None ![]() |
The next question would then be what jets do I need. I have two different type of jets. An I jet and an L jet. Not sure what you need. I've never heard of an I Jet, but L Jet is short for the Bosch L Jetronic Fuel Injection system which your 75 1.8 should be equipped with. L=German for luft (air). The ECU (engine control unit) is a part of this system. |
ClayPerrine |
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#5
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Life's been good to me so far..... ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 15,541 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille ![]() ![]() |
The 1970s ECUs are really robust. They don't often fail because they were built with big, huge transistors, resistors and caps, no Integrated Circuits. They are really hard to kill.
If you can give us some of the symptoms you are experiencing, we may be able to help you get it running. Clay |
Ecoleft |
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#6
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
The 1970s ECUs are really robust. They don't often fail because they were built with big, huge transistors, resistors and caps, no Integrated Circuits. They are really hard to kill. If you can give us some of the symptoms you are experiencing, we may be able to help you get it running. Clay I'm adding the system back on. I previously had the carbs in the car but since I have all the proper parts for the ecu and i have computers i might as well use the computer. |
Ecoleft |
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#7
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
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Ecoleft |
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#8
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
[quote name='Ecoleft' post='2751726' date='Oct 2 2019, 01:55 PM']
[quote name='JeffBowlsby' post='2751122' date='Sep 29 2019, 04:37 PM'] 280 000 104 = CU65X = 1974 1.8L 280 000 111 = CU66X = 1975 1.8L [/quote] The next set of numbers (the file is too big and wont let me post) is 022-906-021 B And under the Bosch logo is 0280-000-015 |
914fahrer |
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#9
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Member ![]() ![]() Group: Members Posts: 103 Joined: 12-November 14 From: Berlin/Germany Member No.: 18,115 Region Association: Germany ![]() |
your picture shows a ECU from the D-jetronic your car has original a L-jetronic .
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JeffBowlsby |
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#10
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914 Wiring Harnesses ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,549 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None ![]() ![]() |
The 037 ECU is correct for either a 1973 1.7L or 2.0L engine. Engine swap from the original 1.8L?
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DickSteinkamp |
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#11
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Senior Member ![]() ![]() ![]() Group: Members Posts: 500 Joined: 27-February 17 From: Bellingham, WA Member No.: 20,876 Region Association: None ![]() |
The ECU you show looks like it has been wet for a long time.
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Ecoleft |
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#12
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
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Ecoleft |
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#13
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
[quote name='Ecoleft' date='Oct 2 2019, 01:56 PM' post='2751727']
[quote name='Ecoleft' post='2751726' date='Oct 2 2019, 01:55 PM'] [quote name='JeffBowlsby' post='2751122' date='Sep 29 2019, 04:37 PM'] 280 000 104 = CU65X = 1974 1.8L 280 000 111 = CU66X = 1975 1.8L [/quote] The next set of numbers (the file is too big and wont let me post) is 022-906-021 B And under the Bosch logo is 0280-000-015 [/quote] |
ClayPerrine |
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#14
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Life's been good to me so far..... ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 15,541 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille ![]() ![]() |
Do you know if you have an L-Jet system or a D-Jet system? If you don't know, just post some pictures of the rest of the EFI system and we can tell from them.
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Ecoleft |
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#15
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
Do you know if you have an L-Jet system or a D-Jet system? If you don't know, just post some pictures of the rest of the EFI system and we can tell from them. I actually have both systems. Just dont know which to use. I'm rebuilding the car after some serious fire damage |
JeffBowlsby |
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#16
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914 Wiring Harnesses ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,549 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None ![]() ![]() |
Please be more forthcoming with all details of exactly what you have and what exactly you are trying to accomplish. We are not going to keep guessing and draw it out of you little by little.
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Ecoleft |
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#17
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
Please be more forthcoming with all details of exactly what you have and what exactly you are trying to accomplish. We are not going to keep guessing and draw it out of you little by little. Sorry. I'm still new to this. I am rebuilding my Porsche 914 again after it caught fire in the engine bay. I have all the parts I could possibly need but I dont know which jets I should use. I have both d and L jets and I have the engine computers. I dont want to use the wrong computer for my car. So I am asking as to what I should use for my car. Since I have both jets and multiple ecu's for the car. Does it even matter? |
bdstone914 |
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#18
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bdstone914 ![]() ![]() ![]() ![]() Group: Members Posts: 4,542 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 ![]() |
Yes. You can not hook up an L jet ecu to a D jet harness. Completely different systems. Many other differences. Do you know what parts are D jet and which are L jet? If not post pictures of what part you have.
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Ecoleft |
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#19
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
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Ecoleft |
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#20
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Newbie ![]() Group: Members Posts: 21 Joined: 21-September 19 From: Tehachapi Member No.: 23,485 Region Association: Central California ![]() |
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