I know there are several posts on here about the issue, but I can't seem to understand the issue fully. I am not sure my Lambda circuit or frequency valve is working properly. I don't know how loud the FV should sound. I do not hear a load buzz when the engine is running. I do hear a loud buzz for a second or two from the engine compartment but just after I turn the key off. Thus, I am not sure what to listen for. Also, perhaps my engine running symtoms will give a clue. The engine will start right up, but if I try to gas it right after starting, there is hesitation like only one or two cylinders want to fire as I press the pedal. Once it warms up more, then the engine revs fine as I press the gas pedal. Is this a symptom of a nonfunctioning Lamba system device or FV? Is there a good step. My idle RPM is about 1000. If I adjust the microswitch to rev lower at idle, I get erratic operation and it wants to stall. Thanks, Paul ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/