LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2003 >> Sonoma 2D Pickup, 2.2 H, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures - 2.2L >> Idle Speed & Ignition Timing
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Idle Speed & Ignition Timing

On all models, both the ignition timing and idle speed are controlled by Powertrain Control Module (PCM) and are not adjustable.