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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 377 (Engine Controls - Self-Diagnostics - 4.3L) >> Diagnostic Tests >> DTC P0106: Map System Performance >> Diagnostic Aids

Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Sonoma, 2003 GMC Safari, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect for the following conditions:
    • Restrictions in the MAP sensor vacuum source.
    • MAP sensor seal is missing or damaged.
    • Vacuum hoses disconnected, damaged, or incorrectly routed.
    • Intake manifold vacuum leaks.
    • Vacuum leaks at the throttle body.
  2. If an intermittent condition exists, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 4.3L ASTRO, BLAZER, JIMMY CANADIAN, SAFARI, SONOMA & S10 PICKUP article.
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