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System of additional giving of air at low speeds
For models with 6-cylinder engine.
This system consists of two vacuum diaphragms (the first is located nearest to the inlet manifold, the second - for a throttle body), the two solenoid valves and three additional throttles, two of which are connected together. | PERFORMANCE ORDER |  | | | Warm up the engine. Open a second throttle and check that the thrust vacuum diaphragms (arrows) moved when opening the throttle. If not, check the condition of vacuum hoses. |
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Vacuum diaphragm Check | PERFORMANCE ORDER | | Using a vacuum pump to apply a vacuum to the vacuum apertures. Make sure that when you create a negative pressure on the diaphragm, the diaphragm rod retracted. If not, replace the diaphragm. |
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Replacement | PERFORMANCE ORDER | | 1. Disconnect the vacuum hose from the diaphragm. Disconnect draft from the valve, turn off fixing bolts and remove the diaphragm. | | 2. Installation is spent upside-down removals. |
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ELECTROMAGNETIC VALVES Check | PERFORMANCE ORDER |  | 1. Disconnect the vacuum hose from the valve and Blow into the tube B. The air must flow through the valve (C). |  | 2. Apply battery voltage to the terminals of the valve and again Blow into the tube B. The air must come out of the nozzle A. Replace the valve if it is defective. |
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Replacement | PERFORMANCE ORDER |  | 1. Disconnect the vacuum hose and connector connection of the valve. Remove the valve from the mounting bracket. | | 2. Installation is spent upside-down removals. |
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Vacuum hose Check | PERFORMANCE ORDER | | Cameras are located under the inlet manifold. Remove the camera and inspect them for cracks or damage. |
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Replacement | PERFORMANCE ORDER | | 1. Remove the intake manifold. | | 2. Disconnect the vacuum hoses from the camera, turn off fixing bolts and remove the camera. | | 3. Installation is spent upside-down removals. |
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