Vac Line Problems

[pdqcrx]

The one circled in red is the dashpot diaphram right?
The one circled in blue is unknown to me?
The one in yellow is the fuel pressure regulator ?
This is a 90 or 91 b18a1
Thanks

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[D See 2]

the one in red is the fast idle valve.
the one in yellow is the fuel pressure reg.
and i'm not quite sure what the one in blue is...

 

[Danabis]

the blue one goes into the intake tube since you prolly wont use your stock intake tubing it wont have it and you dont need to worry about puting it on

 

[lsvtec]

The one in red IS NOT your fast idle valve. That is on the bottom of your Throttle body. All the one in red does is prevent your throttle plate from slamming closed when you let of the gas hard. It needs to be plugged in to your intake.

The one in blue is on automatic cars only. It is a Starting Air Valve. If you have a Manual, just find a way to plug the vacuum leads to it, otherwise it should be plugged into your vaccum setup the same way the stock valve was.

Let's try not to spread false information around.

 

[D See 2]

my fault y0... jumpy...