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b.stirbu |
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1974 daily driver ![]() Group: Members Posts: 27 Joined: 14-June 15 From: Netherlands Member No.: 18,848 Region Association: Europe ![]() |
Dear 914ers,
I'm quite in a pickle with my 914 1.7. The engine sometimes starts sometimes not (usually after it started, ran 5-10 seconds and then stopped and I couldn't manage to start it again). Messing arround in the engine compartment I accidentally unplugged the cyl 4 fuel injector and surprise the engine started and idled low. Tried again one, two, three times and he started succesfully, but as soon as I plug back the cyl 4 injector cable does not want to start again... What's wrong here? (the injector not, because I've swapped 3 with 4 and I still had the same problem). According to the attached current flow cyl 4 injector is in series with the cold start valve and the thermoswitch for the cold start valve.. Am I looking at the right diagram? I also don't know where current track 102 comes from. Also very interesting is that I removed the injectors 3 and 4 and placed them in two cups to see if they work, and I could start the engine in two cylinders (although the cyl 4 injector plug was connected) Cheers, Bogdan Attached thumbnail(s) ![]() |
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Dave_Darling |
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914 Idiot ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 14,992 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California ![]() ![]() |
According to the attached current flow cyl 4 injector is in series with the cold start valve and the thermoswitch for the cold start valve.. Am I looking at the right diagram? I also don't know where current track 102 comes from. The injector on track 102 is not the #4 injector. It's just the cold-start valve, and it grounds through the thermo-switch (often called the thermo-time switch). The switch is grounded (the thin line to the bottom of the page). The CSV gets its power from one of the pins in the four-pin plug on the relay board. As Jeff notes, the 70-71 1.7 wiring diagram should be a better match for what you have in your car. I believe that the parts of the circuit I describe above are the same for yours, though. --DD |
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