Why won't it idle and say on?

[Benet]

Ok my 914 starts, runs when you give it gas, but the thing will die and not idle. I here about adjusting the idle speed, no luck, I have good fuel flow, I think, and it is still fuel injected. Whats going on here. Here's the info. I need help!!!

'74 914-4 F.I.
Starts
when gas not pushed = dies
when given gas runs fine
sometimes spudders or surges when driven at 3K rpm or floored
very occationally back fires / gurgles
and ......sometimes the key turns and it starts and sometimes the key turns and no kick over but you can hear the fuel pump.
What the deal here guys?

[24flys]

Have you checked all the vaccuum hoses for leaks?? A leak can give you problems.

24flys

[red-beard]

D-Jet or L-jet?

[Benet]

It's a D-jet, I have checked the hoses and a few were disconected, but I have reconnected them. I'm going to replace all the hoses vaccum and fuel. Also my distributor is sticking so the timing is way off, it sounds and feels as if it occationally runs off 2 pistons.
I recently meet a local German wrench man who only works on Porsches and for the last 40yrs. He said it could just need a good tune to flag down a specific problem. I'm about as clueless as a monkey in water!