Weird starting idle drop and difficulties AGAIN

[ALEV8]

When you start the cars it still do that?

[bigbuzuki]

I never had the start issue you stated in your first post, just the idle dip when vehicle coming to a stop with resulting shudder through the chassis.

Along with the engine mounts, I had the transmission mount, all four O2 sensors, water pump, coolant thermostat, spark plugs replaced as well for preventative maintenence. Cleaned the Maf sensors and throttle body as well.

Car runs well and smooth, however the idle dip is still there, but not felt anymore.

[jmoorenc]

One thing I would add is if you remove the throttle body for cleaning you may want to remove the side cover and clean the TPS with contact cleaner. No matter how clean the throttle body is the car has to know at all times what position it is in. My fx35 had a dead spot in the throttle position sensor and often searched for the correct idle position at start up. Idles as smooth as silk since addressing that.

[ALEV8]

That shudder when I start is annoying but motor mounts and upper control arms in front are next...