I AM NEW TO THIS FORUM. I OWN A 1985 BMW 318i WITH APPROX 50,000 MILES ON IT. I HAVE DEVELOPED A PROBLEM WHEN IDLING, AT TIMES IT IDLES AT 1500 TO 1800 RPM. AT OTHER TIMES IT IDLES NORMAL AT 850 RPM. I HAD AN EXHAUST MANIFOLD LEAK AND I HAVE REPLACED GASKETS. I HAVE LOOKED FOR VACUUM LEAKS BUT HAVE NOT FOUND ANY. I KNOW I HAVE AN IDLE CONTROL AIR SOLINOID AND WHEN IT IS UNPLUGGED IT REACTS AS IT SHOULD AS PER THE TECH MANUAL. WHERE SHOULD I BE LOOKING TO CURE THIS PROBLEM. THE VEHICLE RUNS FINE, IT DOSE NOT HESITATE STALL OR BACKFIRE. IT JUST THAT IT IDLES HIGH. ANY INFORMATION ON THIS PROBLEM WILL BE HELPFUL. THANKS GEORGE
