 Fuel Injection Help Please, 74 1.8 LJet |
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| SteveL |
 Oct 19 2021, 06:16 PM
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Senior Member  Group: Members Posts: 663 Joined: 7-August 03 From: Andover, MN Member No.: 991 Region Association: None 
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OK - this all started a while back with the engine dying after running for a while and getting warm. Extensive troubleshooting followed.
Here is Where I am at: New SMP Injectors and injector seals. Connected HF fuel pressure gauge. Fuel pressure is good. After installing new injectors, it ran good, until I broke one of the fuel injector connector wires while buttoning things back up. Checked out the harness, and it is pretty questionable, even if I made the repair I could see. So, bought a rebuilt harness from Bowlsby. Installed FI harness, and while I was in there, I replaced all vacuum lines, including the manifold connector hoses, and intake manifold gaskets. All back together, now it cranks and gives 3 outcomes: 1: No start at all 2: Fires, runs for a cycle or two, then dies 3: Fires, revs up to about 3k, then dies (throttle action makes no difference) I have rechecked all harness connections, they are solid. Rechecked vacuum lines, they LOOK correct, but we all know that if it looked right the first time, it will still look right the second time. Help!!!! I am in MN and only have a few more weeks before the dreaded white crap falls from the sky and ends the season. |
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| djway |
Oct 19 2021, 09:32 PM
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Senior Member Group: Members Posts: 787 Joined: 16-October 15 From: Riverside Member No.: 19,266 Region Association: Southern California |
There are many online L Jet manuals that are for diagnosis.
Google L-Jetronic and add type4org.com or thesamba.com I have found it best to start at step one and test everything in order and not jump around. Rule one thing out then move to the next always saved time in the long run. The bus guys on the Samba have a ton of great information. |
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Posts in this topic
SteveL Fuel Injection Help Please Oct 19 2021, 06:16 PM
emerygt350 I am sure others with 1.8 experience will give you... Oct 19 2021, 06:48 PM wonkipop you been having this problem for a while @[url=ht... Oct 19 2021, 08:18 PM Big Len This sounds like the dual relay is kaput. I always... Oct 19 2021, 09:08 PM SteveL Wonkipop - yep, I've been fighting issues for ... Oct 19 2021, 09:20 PM
wonkipop
Wonkipop - yep, I've been fighting issues for... Oct 20 2021, 04:09 PM Geezer914 Vacuum leak. I had the same problem. Do a smoke ... Oct 20 2021, 05:53 AM timothy_nd28 Sounds like a vacuum issue or a dual relay, hard t... Oct 20 2021, 08:18 PM Van B What’s the latest here??? Nov 12 2021, 05:57 PM SteveL Re-checked all vacuum lines.
Installed new fuel ... Nov 12 2021, 09:42 PM Van B But the fuel pump is good? Nov 12 2021, 10:05 PM Geezer914 How about the harness from the relay board to the ... Nov 13 2021, 08:16 AM jim_hoyland Pull the two connectors off the dual relay. Check ... Nov 13 2021, 11:38 AM |
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