This seems to be a common complaint on this car. Though I did not find anything with my visual inspection of the IAC valve, a new IAC valve or solenoid did fix this issue.

What causes a surging idle speed on a Honda or Acura?

Here, we’re covering an idle speed issue on a Grand Marquis.

In this video I’ll show you how to use scan data and service information to diagnose a P0106 MAP/BARO Pressure Circuit Out of Range code on a 2005 Chevrolet Trailblazer.

In this video I will show you how to use Idle Air Control (IAC) position to identify a vacuum leak.

In this part 2 video we will focus on testing and cleaning the idle air control motor.

How to test an idle control valve (2-wire solenoid type) using a lab scope.

  1. How to test an Idle Air Control (IAC) valve - Nissan/Infinity