What vehicle does this vacuum hose routing diagram apply to?

The label states it is for the Honda Prelude, engine family identification MHN2.1V5FAF9, with 125 CID (2056 cm³) displacement, evaporative family 91FG, and 5-speed/automatic transmissions.

What components are shown in the vacuum hose routing?

The diagram shows the control box (hose ports 16, 21, 5, 24 and hose 3), the canister, a line to the 2-way valve, the EGR valve, the pressure regulator, and a line to the auto cruise system.

How far should the vacuum tubes be inserted onto their fittings?

The label instructs: 'Insert tubes more than 1/2 in (12 mm).'

What is the part number of this vacuum routing decal?

The part number printed on the label is 17277-PK3-A01.

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Honda Prelude 2.1L Vacuum Hose Routing Diagram Decal - 17277-PK3-A01

Honda Prelude underhood vacuum hose routing diagram label

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Underhood vacuum hose routing diagram label for a Honda Prelude showing EGR valve, canister and pressure regulator hoses.

AI caption May 2011 · Photo 2598 of 2964

This is a photograph of the factory underhood emissions/vacuum hose routing decal for a Honda Prelude. The label is titled 'Vacuum Hose Routing Diagram – Honda Prelude' and identifies the engine family as MHN2.1V5FAF9 with a displacement of 125 CID (2056 cm³), evaporative family identification 91FG, and applicability to both 5-speed manual and automatic transmissions. The diagram shows an isometric view of the engine bay with vacuum hose routing between the control box (with numbered hose connections 16, 21, 5, 24, and hose 3), the EVAP canister, a line to the 2-way valve, the EGR valve, the fuel pressure regulator, and a line to the auto cruise (cruise control) system. An arrow indicates the front of the vehicle for orientation. An installation note instructs to insert tubes more than 1/2 in (12 mm) onto their fittings. The label carries Honda part number 17277-PK3-A01. A reader can learn the correct factory routing of emissions-related vacuum hoses and the emissions certification identifiers for this Prelude engine. Note: although uploaded to a 1979 Ford F-150 gallery, this decal explicitly applies to a Honda Prelude.

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Frequently asked questions

What vehicle does this vacuum hose routing diagram apply to?: The label states it is for the Honda Prelude, engine family identification MHN2.1V5FAF9, with 125 CID (2056 cm³) displacement, evaporative family 91FG, and 5-speed/automatic transmissions.
What components are shown in the vacuum hose routing?: The diagram shows the control box (hose ports 16, 21, 5, 24 and hose 3), the canister, a line to the 2-way valve, the EGR valve, the pressure regulator, and a line to the auto cruise system.
How far should the vacuum tubes be inserted onto their fittings?: The label instructs: 'Insert tubes more than 1/2 in (12 mm).'
What is the part number of this vacuum routing decal?: The part number printed on the label is 17277-PK3-A01.
What engine displacement is listed on the label?: 125 CID (2056 cm³).