My 93 DA9 had been idling real low for about a week, so i decided to clean my IAC. After re-installing it, there was no change. I was going through my manual and contemplating what I should do,i decided to try to adjust the idle speed screw. After adjusting this the idle went back to normal, but my Check engine light came on, and my car started to overheat when parked. Does anyone have any clue as to what I should do?
Mine has the same problem I cleaned it out also because I was rebuilding the head and when I put it back together it idled really low and would die. So I adjusted idle and now the cel turns on and RPM’s go up and sits at 1500 and then it over heats bad. But I read light and it said knock sensor for some reason. Weird tho but I’m going to replace and see what happens.