I have an issue where my idle takes a while (8 seconds approx) to drop back to normal idle when driving at any speed. It seems to "stick" there for 4 seconds before deciding to drop slowly when my foot is off the gas.
Tps, map sensor, iac, o2 sensors have been replaced. Throttle body clean also.
Did a rough *** type job of finding a vacuum leak with wd40...nothing.
Anyone have an idea what it could be???

 

Weird im having the same issue. Like ib netural if I rev it high it sticks around and slowly drops back down to normal idle idk.. hope someone has an answer

 

Im guessing either vacuum leak or tps. Apparently there are hoses under the battery holder? Can a crankshaft sensor affect the sticking idle as well?

 

A crank sensor would cause hard starts and if its going out completley it wont start at all. I do have a slight exhaust manifold leak so maybe thats my issue idk