Help idenitfy these parts please

[VinceSez]

I went to have the nissan dealership identify a part on my car, which i had a mechanic take a pix of. and today i went to show them the pic, and they told me that i needed to replace...

- harness- valve assy-aac ?- gasket aac valv ?

i wish i had a scanner to scan the picture i showed them, so that i could give you guys an idea of what part im talking about... it's located just a lil below the intake manifold.. does anyone know what part im talking about, and what it does?

92 240sx, with 91 ka24de engine

[themadscientist]

herness is an electrical harness of some kind, the AAC valve is an electric solenoid-metered valve that routes air around the throttlebody to control the idle speed and the gasket is of course the gasket is the gasket silly

[VinceSez]

lol thanks...

trying to figure out why my car wouldn't run faster than 15mph. the mechanic told me that it isn't the MAFS, or the cat. he showed me that it was the knock sensor, but it turned out it isn't.... just don't know what the problem is.... he also told me that my car only doesn't want to run faster than 15mph when it's hot, or really warmed up on a hot day .... what could be the problem?