Will it ever end? Not looking good! Options

[customstarr]

My car still idles like pure crap. Very inconsistent - high to low surging, super low, rich... you name it, this car's idle is ALL OVER THE PLACE. It's never the same condition. The car runs like a raped ape and goes good, but the idle sux complete ass. I used to be able to get some idle adjustment at the TB screw (I don't have the ECM screw), but today I set the fuel pressure correctly (was at 42 PSI) and now I have no control over the idle mix/speed. Maybe someone in the past tried to cover the problem by cranking up the fuel pressure. I'm not seeing the super rich condition now, but like I said... no control.

I've been through everything: replaced/fixed wiring, new ignition system, battery, cables, checked all the standard fare + what I've listed below, etc. This is getting ridiculous.


What I've replaced thus far:

1. Ignition: Coil, Cap, Rotor, Points, Condenser, Plugs, Wires (all Bosch except plugs).
2. Fuel/D-Jet: TS1, Fuel Filter, Vacuum Lines.

What I've checked, adjusted to spec, or tested to be good:

1. Ignition: Points, Timing, Trigger Points.
2. Fuel/D-Jet: MPS, TS2, Fuel Pressure Reg, Cold Start Valve, Aux Air Reg, Injectors, Fuel Lines, Fuel Pump, Throttle Body, Throttle Switch.
3. Engine: Timing, Compression, Valves.

[scotty b]

Nope I can't get to the engine for all of the sh*t I have piled up. Maybe somebody else will know what I am talking about.

[Pat Garvey]

Nope I can't get to the engine for all of the sh*t I have piled up. Maybe somebody else will know what I am talking about.

Scotty,

I know exactly what you're talking about. A white semi-Y shaped connector. The connecting hoses fall off easily with age, hich is why I'm changing mine. ANY air or vacuum leak screws the Djet system up. That's why every 5-7 years you should change every hose - vacuum AND hp fuel (low pressure seems to last longer). Sorry, my 914's UP right now, or I'd lift the prts & pic them. This "Y" piece has no clamps, so it can easilly cause lekage problems. And that means the idle can "hunt", like so many other hoses.

Guys, these hoses are readily available (non- high pressure fuel hoses) and they aren't all that expensive. We're talking about "vintage" cars these days - change 'em.