A cracked idle hose on a Z32 shows up as a hunt at stop lights and a vacuum hiss under the plenum. The Genuine Nissan Idle Air Hose (part number 14099-30P02) runs from the air regulator to the balance tube and keeps that idle-air path sealed.
This short hose is part of the vacuum-control / air-hose network on both naturally aspirated and twin-turbo VG30 engines. It fits Fairlady Z and 300ZX Z32 cars, USDM 1990–1996 and JDM 1989–1996, VG30DE and VG30DETT. Diagram location on many catalogs is 14860NF. One is required.
Heat from the valley hardens the rubber until it splits at the ends. Replace it with the rest of the idle hoses when the regulator or balance tube comes off. At Terra Firma Automotive, we supply this genuine Nissan Z32 idle air hose so Fairlady and 300ZX owners can restore sealed airflow between the regulator and balance tube. Choose Terra Firma Automotive for authentic Nissan intake plumbing built for the Z32.
- Genuine Nissan idle air hose
- Part Number: 14099-30P02
- Description: hose-air / vacuum control
- Route: air regulator to balance tube
- Location: 14860NF
- USDM 300ZX 1990–1996
- JDM Fairlady Z 1989–1996
- Engines: VG30DE and VG30DETT
- Quantity required: 1
- Stops vacuum leaks and rough idle
- Direct OEM replacement
- Available from Terra Firma Automotive
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