Honda Acura Accord Civic Del Sol CRV Integra Prelude Fast Idle Thermo Valve

Honda P13 P2T P75 P0A P28 Fast Idle Thermo Valve
Honda P13 P2T P75 P0A P28 Fast Idle Thermo Valve
Item# 16500-P2T-901
$73.70
Availability: Usually ships the next business day

Product Description

This is a sale for a brand new genuine Honda Acura Accord Civic Del Sol CRV Integra Prelude Fast Idle Thermo Valve from Honda Motors, Japan. It can be fixed on OBD1, OBD2; D-series, B-series, F-series & H-series throttle bodies, non-VTEC and VTEC. It may also fit other applications. Buyers, please email us and make your own checks if uncertain regarding your application. This fast idle valve is usually fitted horizontally and bolted below the throttle body.

To prevent erratic running when the engine is warming up, it is necessary to raise the idle speed. The fast idle air bypass valve is controlled by a thermowax plunger. When the engine is cold, the engine coolant surrounding the thermowax contracts the plunger, allowing additional air to be bypassed into the intake manifold so that the engine idles faster. When the engine reaches operating temperature, the valve closes, reducing the amount of air bypassing into the manifold.

As the Fast Idle Valve is factory adjusted, it can be installed or removed but not recommended to be disassembled.

The Fast Idle Valve is a component whereby when faulty can cause some starting and idle-linked problems. The problem is symptomatic and will not trigger the Check Engine light. The list goes:

  1. Difficult to start engine when cold
  2. When cold fast idle out of spec (1,000 - 2,000 rpm)
  3. When warm RPM too high


In many cases, you can test whether your Fast Idle Valve is working by putting your finger at the lower port of the throttle bore, located at 8 o'clock with the throttle body upright. When the engine is cold, you should feel suction and when warmed up (cooling fan comes on), there should be no suction.

Note: Lower cost FedEx Envelope (up to 0.5-kg) shipping option available, please email us for shipping quotes.

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