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> Starting Problems
nmkimosabe
post Mar 11 2026, 02:37 PM
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I drove my 1974 1.8 briefly after sitting for two months in the winter. It drove fine for the mile or so. I went to drive it the next day and didn't get too far before it chugged, jerked and then died. Had it towed back to my house. Inspected all the vacuum hoses, electrical connections and cleaned the air flow sensor and plug. Starts for a few seconds at times and then dies. Other times it won't even start. Had new plugs, points and fuel filter installed about 10 months ago. I can hear the hum of the fuel pump, so I don't think it's that. Mechanic can't see it for two weeks and I would like to get it running. I would appreciate hearing from the 914 community about similar issues. Thanks.
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L-Jet914
post Mar 13 2026, 07:39 PM
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I had this happen to my 74 1.8L recently. My original dual relay went out. I put in another known good used oem metal dual relay and my 914 roared back to life. I now have a few of the newer plastic dual relays set aside ready to go along with a few afms. I've started to collect anything related to the FI system for these cars. I also recently replaced both the FI harness and ignition harness made by Jeff Bowlsby to replace my 50+ year old harness. All if not 99% of my electrical gremlins disappeared related to the FI system etc.
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nmkimosabe
post Mar 14 2026, 04:55 PM
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QUOTE(L-Jet914 @ Mar 13 2026, 06:39 PM) *

I had this happen to my 74 1.8L recently. My original dual relay went out. I put in another known good used oem metal dual relay and my 914 roared back to life. I now have a few of the newer plastic dual relays set aside ready to go along with a few afms. I've started to collect anything related to the FI system for these cars. I also recently replaced both the FI harness and ignition harness made by Jeff Bowlsby to replace my 50+ year old harness. All if not 99% of my electrical gremlins disappeared related to the FI system etc.

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nmkimosabe
post Mar 14 2026, 04:55 PM
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QUOTE(nmkimosabe @ Mar 14 2026, 03:55 PM) *

QUOTE(L-Jet914 @ Mar 13 2026, 06:39 PM) *

I had this happen to my 74 1.8L recently. My original dual relay went out. I put in another known good used oem metal dual relay and my 914 roared back to life. I now have a few of the newer plastic dual relays set aside ready to go along with a few afms. I've started to collect anything related to the FI system for these cars. I also recently replaced both the FI harness and ignition harness made by Jeff Bowlsby to replace my 50+ year old harness. All if not 99% of my electrical gremlins disappeared related to the FI system etc.




Thanks again for all the helpful advice. I went through all the suggestions and to no avail. I did not remove an injector and test the spray as I will leave that to a professional as he can then deal with the correct solution. The car will run briefly at first and then just crank. I have learned a lot about these cars from reading all of the posts which will help me down the road. I did go ahead and buy a dual relay, fuel pump and filter to have as a backup or if the mechanic needs one or all. I didn't want to wait a week to get a part to get the car rolling. I live in a non-metro area, and all parts have to be ordered online. I will post an update once my mechanic figures it out. Have a good weekend.
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Posts in this topic
nmkimosabe   Starting Problems   Mar 11 2026, 02:37 PM
Ishley   Start simple. Fuel, Timing and Spark. I suspect ...   Mar 11 2026, 02:56 PM
nmkimosabe   Start simple. Fuel, Timing and Spark. I suspect...   Mar 11 2026, 03:33 PM
nmkimosabe   Start simple. Fuel, Timing and Spark. I suspect...   Mar 11 2026, 05:36 PM
FlacaProductions   where is the new filter? if it's under the tan...   Mar 11 2026, 03:25 PM
emerygt350   Something didn't die in the flapper did it?   Mar 12 2026, 09:57 AM
wonkipop   try wiggling the EFI harness in the engine bay. pa...   Mar 12 2026, 11:26 AM
porschetub   Is the fuel tank clean ,if just average change the...   Mar 12 2026, 01:52 PM
fiacra   Yes, that is an original three port fuel pump. A ...   Mar 12 2026, 03:07 PM
nmkimosabe   Yes, that is an original three port fuel pump. A...   Mar 12 2026, 07:11 PM
fiacra   It's a good sign you're hearing the fuel p...   Mar 12 2026, 09:49 PM
nmkimosabe   It's a good sign you're hearing the fuel ...   Mar 13 2026, 09:09 AM
Dave_Darling   Any fuel coming out of the injectors? Fuel smell ...   Mar 13 2026, 12:14 AM
fiacra   Yeah, if you still have the original metal relay I...   Mar 13 2026, 10:59 AM
Ishley   I don't disagree with having an extra relay on...   Mar 13 2026, 01:45 PM
L-Jet914   I had this happen to my 74 1.8L recently. My origi...   Mar 13 2026, 07:39 PM
nmkimosabe   I had this happen to my 74 1.8L recently. My orig...   Mar 14 2026, 04:55 PM
nmkimosabe   I had this happen to my 74 1.8L recently. My ori...   Mar 14 2026, 04:55 PM
Shivers   @nmkimosabe You shot starter fluid down the t...   Mar 14 2026, 06:58 PM
nmkimosabe   [b]@[url=http://www.914world.com/bbs2/index.ph...   Mar 15 2026, 12:29 PM
73-914   [b]@[url=http://www.914world.com/bbs2/index.p...   Mar 15 2026, 02:17 PM
Shivers   [b]@[url=http://www.914world.com/bbs2/index.p...   Mar 15 2026, 02:18 PM
nmkimosabe   [b]@[url=http://www.914world.com/bbs2/index.p...   Mar 21 2026, 09:39 AM
wonkipop   @[url=http://www.914world.com/bbs2/index.php?showu...   Mar 16 2026, 02:06 AM
nmkimosabe   @[url=http://www.914world.com/bbs2/index.php?show...   Mar 21 2026, 03:52 PM
Artfrombama   Are you getting around 30psi fuel pressure at the ...   Mar 21 2026, 10:35 AM
nmkimosabe   Are you getting around 30psi fuel pressure at the...   Mar 21 2026, 03:54 PM


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