I just completed this DIY on my 1995 325is and I'm not sure if it helped or hurt my cars idle problem. I got to the control valve out fine and cleaned it up with a tooth brush and q-tips and rubbing alcohol, and it did clean up great. However, after letting it dry for about 15 minutes or so I put the hoses back on and placed the icv back in place, then after starting up my car the idling seemed to be more extreme than it was before. I thought it mgiht straighten itself out if I took it for a short drive so I drove down the road and came back and it still has alittle trouble. It almost makes the car tremble a little. Before I cleaned it, my car would bounce around between 250-1000 rpms when idling and slightly rolling, like upto a stop light or something..but when the car would stop rolling the rpms would stablize. now it seems like the rpms are unstable both while rolling and while sitting still. Has anyone had this problem before..and if so what do I need to do to fix it up?
Thanks for any help.