Engine Cutting Out Again, Severe Miss Options

[PDXBob]

Hi 914’ers,
This is a revival of my old post about the same engine cutting out problem on my 1975 914 (1.8L). It cuts out generally after warmed up and driven for a while. Usually happens under load, like when I’m going up a hill. Doesn’t miss on idle or when I rev it up in the driveway. Based on the work I’ve done so far I’m now thinking must be fuel related.

Here’s an (unfortunately) long list of what I’ve checked or replaced:
- new Spark Plugs and wires,
- new 123Ignition distributor, coil and distributor cap
- no vacuum leaks, all ground wires appear in contact and good shape.
- ECM wiring appears good and I’ve tried wiggling its wires to see if any faults
- Tested the TPS and it’s good, also AFM flap moves smoothly.

A couple of other interesting things- I didn’t drive it for about 2 months, and after installing new distributor it ran great for about 2 weeks. Also, on Friday it was cutting out bad, then I stopped at a store for about 1/2 hour and when I restarted and drove home the cut out had disappeared.

So, I’m now think fuel system related.
Any ideas would be greatly appreciated!
PDXBob

[wonkipop]

i agree with dd and artfrombama.

i reckon its fuel.
either a looped hose is collapsing at a bend or there is a problem at the tank.
sock in tank? even a fuel filter - dunno if you have checked the filter, maybe you have.

typically this tends to happen after you have had it running a while.
debris builds up,
the car calls for fuel under load and it all chokes up.
or alternatively a looped hose which has aged a bit collapses under demand for the fuel and strangles off supply.

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