 ECU part numbers for 1975 L-Jet, looking for info |
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| rick_cv |
 Sep 18 2022, 10:01 AM
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#1
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Newbie  Group: Members Posts: 33 Joined: 3-March 09 From: PNW Member No.: 10,125 Region Association: Pacific Northwest  |
Trying to piece together an L-Jet fuel injection system with the parts I currently have. Missing the ECU and have a 6 pin AFM. Does anybody know what the correct ECU part number is for a 6 pin AFM? The early 1974 411 has part number 022906021F and the going rate is 1/3 the price of a 1975 914 unit, part number 022906021G. A 1975 bus ECU typical part number is 022906021H. These are all indicated for manual trans but not sure which AFM they work with. Thanks
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| rick_cv |
Sep 18 2022, 05:05 PM
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Newbie Group: Members Posts: 33 Joined: 3-March 09 From: PNW Member No.: 10,125 Region Association: Pacific Northwest |
Thanks for the info. I will take a look and see what part number my AFM is and try to cross reference it on these charts. It is confusing with 6 pin/7 pin difference and what ECU works. I believe the wiring harness (which I also have) varies too.
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| wonkipop |
Sep 18 2022, 06:04 PM
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#3
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Advanced Member Group: Members Posts: 4,331 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille 
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QUOTE(rick_cv @ Sep 18 2022, 05:05 PM)  Thanks for the info. I will take a look and see what part number my AFM is and try to cross reference it on these charts. It is confusing with 6 pin/7 pin difference and what ECU works. I believe the wiring harness (which I also have) varies too. the 914 stuff is easy. its listed in the parts catalogue for the 914s. for 74 and 75. the way they do it is note it as after a certain EC engine number. its been extracted out in that thread i linked to to make it a little easier. ----- the interesting question you ask is would the 74 412 ECU be compatible. i don't know to be 100%. its a worthwhile question but hard to get to the bottom of. there were only 412s with L jet for 1974 MY so that would be the only one to look into. 74 ECU compatibility. it would be a six pin like the 914s. in 75 the 1.8 engine is only going in the 914s, the 412 is over at that point. and as mr. b notes - different AFM, different ECU and has 7 pin connector harness. that might be the only real difference, the 7 pin harness. the way the engine runs as mapped by the ECU is probably the same. 49 states 75 1.8s were basically californian 74s. they did change the decel valve. that was different from 74 to 75. but i do not believe they "essentially" changed anything else. |
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Posts in this topic
rick_cv ECU part numbers for 1975 L-Jet Sep 18 2022, 10:01 AM
wonkipop 6 pin connector is 74 1.8 l jet.
some of the info ... Sep 18 2022, 02:04 PM jim_hoyland I may have some ‘75 parts for; not home at prese... Sep 18 2022, 02:21 PM wonkipop ok - i took a look at 914 parts catalogue.
so its... Sep 18 2022, 02:36 PM wonkipop
Trying to piece together an L-Jet fuel injection ... Sep 18 2022, 02:49 PM
JeffBowlsby The 914 Ljet harnesses are easy enough. There are... Sep 18 2022, 05:14 PM wonkipop clay perrine knows a huge amount of detail when it... Sep 18 2022, 06:15 PM wonkipop @rick_cv
this probably answers the question on E... Sep 18 2022, 09:22 PM
rick_cv Thanks for the info. I know 022-906-021G is the p... Sep 19 2022, 10:47 PM wonkipop
Thanks for the info. I know 022-906-021G is the ... Sep 20 2022, 01:23 AM theer
Thanks for the info. I know 022-906-021G is the... Sep 27 2022, 05:32 AM rick_cv
[quote name='wonkipop' post='3031059' date='Sep 2... Sep 27 2022, 06:58 PM |
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