I have a gen4 v6 94' camaro and I am having problems with my idle at start up. I get a pulsing sound from the engine it sounds like the engine is reving up and down slowly on its own but I see no difference on the tach. I was thinking of trying to replace the idle air control valve and see if that fixed it and if not move on to the MAF or the O2 sensor but my problem is I haven't worked on any of these 'newer' Chevy motors before and need some help finding the damn thing if anyone has some pictures to the location it would be much appreciated