Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
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lemon-manuals.org.ua
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EGR Valve: Description and Operation
The
EGR valve controls the flow of exhaust gasses into the intake manifold. When vacuum from the vacuum switching valve is applied to the diaphragm, the diaphragm moves upward, allowing recirculation to occur.