96 Taurus manifold runner stuck open
96 Taurus V6 with "U" code, DOHC. I traced the problem to a broken cable that runs from a box on top of the front valve cover to somewhere near the throttle. Bought the part ($170 or so), installed it, and the car passed emissions. On the way home, the check engine light came back on. I've noticed the cable seems a bit loose but other than that appears ok.
Upon cold start, the idle goes to around 1200 and runs smoothly. Put in gear and it idles down nicely and drives well. Any ideas on why the engine light came back on?
email or post here. Thanks.