bigrichi 0 Posted July 13, 2009 My car has been idling a little bit on the lumpy side(hunting between 700-1050rpm) so stripped off the MAF,ISV and the dash pot and gave them a good clean. I noticed that the ISV wasnt actually plugged in . After cleaning and putting it all back together the lumpy idle is still there but when i plug the ISV in the revs shot up to about 2000rpm and stayed there. If i revved it the engine revs rose and then returned to 2000rpm. Is my ISV dead and is there any other way i can test it?? Cheers Richi Quote Share this post Link to post Share on other sites