[wiswind]

I have a '96 3.8L....so that is my point of reference...

On the passenger side of the engine....you will be able to see the 2 IMRC actuators.

Follow the linkage to the end of the shaft that passes through into the lower intake manifold......On the end....you will be able to see 2 stops.....1 for fully open.....and 1 for fully closed.

With the engine OFF....verify that the IMRC is against the fully OPEN stop for BOTH the front and back shafts.

Start the engine....verify that the IMRC is against the fully CLOSED stop for BOTH the front and back shafts.

If one of these conditions is not correct......you will need to correct it....maybe dirt in the way.....or some other easy & cheap solution.....a little dirt built up on the stop.....or in the linkage can cause the problem.

I have read posts about the plastic bushings breaking / binding....can be bought and replaced.

If they are both correct.....verify that the connections to the sensor / acutators are good (unplug and plug again)

Mine are vacuum actuated.....and electrically sensed. If you have a code reader....you can clear the codes.....and try checking the sensors.....unplugging 1 and seeing if you get a different code....etc.
Is this a solid failure?.....as in...clearing the code....does it come right back?