Quote:
Originally Posted by scivicblu83
yes, either with your mouth or vacuum pump pull a vacuum on the egr valve actuator diaphram, so it with the engine idling, if the passages are good the engine will sputter really bad from the exhaust gas being injested meaning you have open egr passages.
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However the HX has an electronically controlled EGR valve, has no vacuum hose going to it. Not sure when the Civic line got away from a vacuum controlled EGR. HX model began in 1996.