 Asking for a friend..., FI issue (maybe) |
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| Type 47 |
 Aug 26 2026, 10:51 AM
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#1
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Senior Member  Group: Members Posts: 802 Joined: 1-June 10 From: St. Louis, MO Member No.: 11,790 Region Association: None 
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the car is pretty original 74' 1.8 with the original FI.
It started to run poorly when hot, she took it to a shop, and they said it needed new points. They replaced those but later it continued to run poorly even cold. last time she drove it, it died shortly after leaving. She got a 123 Ignition distributor, so I went over to help put it in. I'm not a mechanic but have owned 914's since 1977. most of them with carbs not FI We pulled the #1 plug and it was extremely sooty. I guess we need to put the distributor in and see how it runs but I'm leery that is going to fix the running so rich issue. Any thoughts or direction would be greatly appreciated. |
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| Superhawk996 |
Aug 26 2026, 12:49 PM
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#2
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914 Guru Group: Members Posts: 8,011 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Check cylinder head temp sensor resistance both hot and cold. A 1.8L would be using the 012 sensor.
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| Artfrombama |
Aug 26 2026, 02:38 PM
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#3
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Artfrombama Group: Members Posts: 476 Joined: 21-January 24 From: One of the chosen few Member No.: 27,870 Region Association: South East States
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Possibly a defective fuel pressure regulator.
30-35psi |
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| wonkipop |
Aug 26 2026, 03:41 PM
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#4
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914 Guru Group: Members Posts: 5,689 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille
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QUOTE(Type 47 @ Aug 26 2026, 10:51 AM)  the car is pretty original 74' 1.8 with the original FI. It started to run poorly when hot, she took it to a shop, and they said it needed new points. They replaced those but later it continued to run poorly even cold. last time she drove it, it died shortly after leaving. She got a 123 Ignition distributor, so I went over to help put it in. I'm not a mechanic but have owned 914's since 1977. most of them with carbs not FI We pulled the #1 plug and it was extremely sooty. I guess we need to put the distributor in and see how it runs but I'm leery that is going to fix the running so rich issue. Any thoughts or direction would be greatly appreciated. you just got to be methodical. testing all components. instead of guessing. a good place to start is with the old VW tech literature used by shops back in the day. jeff bowlsby has some of these on his website and you can download them. pretty handy to have. its not that complicated a system. you can get your head around L jet reasonably easily. its a lot simpler than D jet. a lot. links to bowlsby website. this one is not a bad one. generic VW early L jet troubleshooting guide. https://bowlsby.net/914/Classic/zTN_Man12.pdf |
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| emerygt350 |
Aug 26 2026, 03:50 PM
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#5
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Advanced Member Group: Members Posts: 3,710 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Temp sensors. Check them.
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