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Join Date: Sep 2001
Location: Indianapolis, IN, USA
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The Ongoing Saga

Hope you guys can help me with some good advice. My son has a '74 914 1.8 with Fuel Injection which I have asked about before. It stopped running on him on the highway. I went out and found the wire from the coil to the distributor had a broken connector. After fooling around it started but only ran a short time. I replaced the cable and it started but only ran briefly. Had it towed to the generic import garage. They said vacuum was good and replaced points and condensor, set dwell and so on. It starts but runs only briefly and then dies. He says the points open and close. Mechanic thinks it needs a new distributor due to a bad centrifugal advance or bad cam drive. A used 1 will cost more than an electronic ignition conversion. We're not purists, just want it to run and we have very little mechanical talent, hence taking it to the garage. Will the electronic ignition fix this and make it drivable? Thoughts? Thanks for your help you guys are the greatest!
Dave
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'75 914 1.8
Old 12-03-2002, 04:11 PM
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Location: Santa Clarita, CA., USA
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I would first try replacing the Cylinder head temp sensor. A bad one will cause the car to start and then stall very quickly, I think it actually floods the engine. Have you checked the plugs after running then stalling?
Good Luck,
Mike D.
Old 12-03-2002, 04:20 PM
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Dave,
Check the dual relay assembly & wiring which is screwed to the battery tray. These relays have a bunch of wire and electrical contacts that tend to shake a little loose. Make sure the relays are fully seated. I have used ty-wraps to secure them. It stopped the intermitant engine dying problem.
Phil
Old 12-03-2002, 04:24 PM
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Hey Dave!
Sounds like a fuel delivery problem. A couple of problems I have had with my 1.8L are VACUME LEAKS. The $30 I spent on new vacume hoses was the best investment yet. Just take one hose off at a time and replace it with a new one. I used heater core hoses of two different sizes and small vacume hose. I think you only need three sizes.
Your car can idle/kinda run for a short amount of time with the fuel pump not running. When you crank the car over the fuel pump runs untill you stop cranking then the air flow meter switch takes over. If you pop off the top off your air flow meter and carfully turn the flap with the key on the fuel pump should run. Get your son to crank the engine while watching the air flow meter to see how it works first! I have spent along time trying to get to the bottom of my F.I. problems. My car runs great now. I get scared to thing how much of a bill I would have racked up at the garage. Search the 914 tech forums here and you will find lots of info on L-Jet F.I. trouble shooting. Good luck, Dave
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75 1.8L
Old 12-03-2002, 10:06 PM
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You need three things for the engine to run: Fuel, Air (or compression), and Spark.

Do you have a spark? You can take a spare plug and plug wire and hook it up to the center coil terminal. Tape it (don't hold it, OUCH!!!) so the threads or the end is touching the fan shroud or another ground. Have someone crank the starter; the plug should have visible sparks.

Do you have fuel? Do you smell it at the tailpipe after cranking the starter? Try pulling the injectors off of one side of the engine and sticking them into glass jars. Have someone crank the starter and watch the injectors. You should get small bursts of fuel coming out of the injectors.

Do you have compression? Try a compression tester.

After that, everything is a matter of how much fuel you are getting (should be "about" 1/13th of the air mass that is going in) and when the spark is happening. (Check the static timing.)

--DD
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Old 12-04-2002, 09:18 AM
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One more time. We had the car at an independent German "specialist", you know ******** whatever and he said it was the fuel pump. My son decided he wanted to sell it as is and had it towed home. I thought I would give it 1 more try and found it was out of gas. Put some in and find the gas line is corroded through and leaking on the passenger side under the car. When I crank it, fuel leaks out and when I stop so does the fuel. This isn't the fuel pump is it? Is it possible this thing has been leaking and it messed up the pressure in the line (novice guess) causing the car to start and then stop right away? It's been cold here for the month and a half its been sitting and I wonder if it froze and thawed and turned into a big leak. Very interested in your thoughts on this since it seems like you guys always know way more than the garage experts do. Thanks for your help.
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Old 01-09-2003, 10:28 AM
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I think you answered your own question here. When you actually have fuel in the tank and you turn the key, the fuel pump pulls gas from the tank and pumps it all over the ground. To get from Point A (fuel pump) to Point B (engine) you need fuel lines without holes in them.
Old 01-09-2003, 10:35 AM
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Fix the fuel problem before you burn the car to the ground. The dying problem will most likely be fixed with the fuel line fix. Get a new fuel filter. Check the tank for rust. Fortunately, on these cars you can look right into the gas tank with a flashlight, or is it a match, I forget.

Last edited by Zeke; 01-09-2003 at 03:21 PM..
Old 01-09-2003, 03:18 PM
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check to see if your car has had the fuel pump relocated to the factory recall position. just do all the lines and forget about that 1 issue.

Last edited by Kevin Powers; 01-10-2003 at 09:08 PM..
Old 01-10-2003, 09:03 PM
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