Porsche Auxiliary Air Valve - S Model Fuel and Fuel Injection : Fuel Pumps Injection and Relat

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Auxiliary Air Valve (S Model) Porsche Auxiliary Air Valve - S Model 0280160400 Part No: 91111027300Quantity: Invalid Quantity. Porsche Auxiliary Air Valve - S Model Fuel and Fuel Injection : Fuel Pumps Injection and Relat

Product Info

Auxiliary Air Valve (S Model) Porsche Auxiliary Air Valve - S Model 0280160400 Part No: 91111027300Quantity: Invalid Quantity. Special Notes Put an end to erratic fuel injection. We carry Bosch replacement air valves. The auxiliary air valve provides for a slightly fast idle for a cold engine. It does this by allowing more air in bypassing the closed throttle valve. It does not however change the fuel/air mixture because the air entering the auxiliary air regulator has already been measured by the air flow meter. It just lets some air bypass the throttle body for a fast idle to help keep the cold engine running. There is a rotary valve in the housing with one hole in it. This valve is connected to a bimetallic strip. When the engine is cold the bimetallic strip rotates the valve so that the hole is aligned with the two air hoses--air can pass through the valve. When the ignition is turned on a heataing element begins to warm the bimetallic strip. As the strip warms it beins to close the valve. From the coldest the valve will close in about 8 minutes. When fully warm no air will pass through the valve. Tech Tip! The regulator can be tested by blowing through it with the engine cold--air should pass freely. When the engine is warm you should not be able to blow through it. Application Notes Put an end to erratic fuel injection. We carry Bosch replacement air valves. The auxiliary air valve provides for a slightly fast idle for a cold engine. It does this by allowing more air in bypassing the closed throttle valve. It does not however change the fuel/air mixture because the air entering the auxiliary air regulator has already been measured by the air flow meter. It just lets some air bypass the throttle body for a fast idle to help keep the cold engine running. There is a rotary valve in the housing with one hole in it. This valve is connected to a bimetallic strip. When the engine is cold the bimetallic strip rotates the valve so that the hole is aligned with the two air hoses--air can pass through the valve. When the ignition is turned on a heataing element begins to warm the bimetallic strip. As the strip warms it beins to close the valve. From the coldest the valve will close in about 8 minutes. When fully warm no air will pass through the valve. Tech Tip! The regulator can be tested by blowing through it with the engine cold--air should pass freely. When the engine is warm you should not be able to blow through it. Applications Make Model Engine Type Liter Years Fuel CID Fuel Delivery Porsche 911 H6 2.7 1976 - 1977 GAS 2688 FI