Your mouth or another pressure source.
Sr20det throttle body vacuum lines.
This is a component that acts as a gate keeper and establishes a minimum or maximum position for a throttle body plate to be opened or closed.
Just look at the pictures of these manifolds to see exactly what we are talking about.
Genuine nissan s13 180sx sr20 heater and coolant hoses.
One line from boost source to wastegate actuator as mentioned above.
Can of starter fluid.
The issue could also be an incorrectly adjusted throttle stop.
By fine tuning the plenum volume and runner length shape velocity element manifolds deliver more performance per dollar than any other manifold on the market.
Keep it pre throttle body as the wg actuator is not designed to operate with vacuum.
Well been driving my car with my sr20 in my car about a month and it still wont idle right.
The larger one on top runs to the bypass valve bov.
One line from inlet manifold to fuel pressure regulator.
Details vary between models but the basic concepts are the same.
3 lines start at the throttle body.
The vacuum lines are simple.
Anddd i cant remember the others if any is dark outside o.
One for your map sensor off the throttle body one for the fuel pressure reg one for the turbo actuator.
Without any idle adjust it idles at cold startup around 900rpm thats fine but when the motor starts to get warm it surges between 700 1300rpm thats not right.
Vacuum diagram found in the factory service manual fsm 2.
Velocity element s14 s15 sr20det intake manifolds deliver peak efficiency and power throughout the entire power band.
Also when i drive the car and just pop it into neutral it just dies i got to pop start it to keep it running or wait for rpms to drop around.
For those of you with the red top s13 sr20det the above vacuum hose diagram is literally the only one i could find in english for this engine.
What you can usually find locally for vacuum line is terrible.
Vacuum leaks can disrupt the air fuel flow because of an imbalanced airflow which can cause throttle body pressure problems.
This one is very important.
Please see the diagrams above to select the required hoses.