Rough, Unstable, or Incorrect Idle and Stalling

WARNING: This page is about a different variant/trim than selected.

Inspect the engine mounts. Refer to Engine Mount Inspection .
Test for excessive coking or deposits on the throttle valve and throttle bore.
Use the scan tool to perform a cylinder balance test by commanding individual fuel injectors OFF with the engine running-Refer to Powertrain Control Module Scan Tool Information .
Use the scan tool to verify the PCM is receiving idle-up inputs from the power steering high pressure switch, the A/C compressor relay, and the rear defogger relay-Refer to Powertrain Control Module Scan Tool Information .