1974 1.8L engine fast idle then stalls, Fuel injection issues Options

[tshih914]

My 1.8L 914-4 with stock Bosch L?-Jetronic FI after being stored several years started to develop a hard to start problem. When finally started would stall when I give the gas pedal any input to raise the revs. I suspect there was some kind of intake air leak and while fiddling around had a backfire which blew the AF meter which I had Pelicanparts repaired. After replacing the fuel lines with the stainless ones from Tangerine Racing and flushing out the fuel system with Techron the engine started to run normally for a short time. Now the engine can be started and fast idles at 3000 rpm but again any input to rev up the engine results in stalling. The idle adjustment screw at the base of the throttle housing is fully closed. Any suggestions on how to fix?

[wonkipop]

direct link to AA vac hose kit.

http://www.autoatlanta.com/Porsche-Vacuum-...BAAVACKIT2.html

(it was under accessories section, not hard parts, and was listed in engine misc.) (IMG:style_emoticons/default/beerchug.gif)

[tshih914]

direct link to AA vac hose kit.

http://www.autoatlanta.com/Porsche-Vacuum-...BAAVACKIT2.html

(it was under accessories section, not hard parts, and was listed in engine misc.) (IMG:style_emoticons/default/beerchug.gif)

I just ordered that kit but it says the kit doesn't include the 19mm hose. So Where do I get the 19mm hose (where does this hose connect? the charcoal cannister?)

[wonkipop]

direct link to AA vac hose kit.

http://www.autoatlanta.com/Porsche-Vacuum-...BAAVACKIT2.html

(it was under accessories section, not hard parts, and was listed in engine misc.) (IMG:style_emoticons/default/beerchug.gif)

I just ordered that kit but it says the kit doesn't include the 19mm hose. So Where do I get the 19mm hose (where does this hose connect? the charcoal cannister?)

short answer is you cannot get the 19mm hose.
though PET and my measurements say its 20mm ID. splitting hairs i know.
its the hose from the oil filler tower PCV valve to the air intake boot.
originally a formed hose to make the S curve.
people have had to do all sorts of subs and use all sorts of different hose.
you will notice on your car it has already been rigged up as elbows to solve the problem of doing the curves and sealing the junctions.
that set up you have is probably ok. if you are worried about it keep the elbows and sub new hose. probably have to find rubber hose that is hydrocarbon resistant.
(IMG:style_emoticons/default/beerchug.gif)