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You cannot manually test the EGR valve like you can with most ie. applying vaccum and depressing the diaphram. The EGR valve is controlled by the ECM you must have an OBD-2 compliant scan tool to montinor EGR functions.

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โˆ™ 2015-07-16 19:24:34
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Q: How do you test the EGR valve on a Daewoo Lanos?
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