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Home >> Chrysler >> 2004 >> Crossfire Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Electrical Diagnostics >> Diagnosis And Testing >> DTC P0172: Fuel System 1/1 Lean Control Below Limit (At Load) >> Diagnostic Test >> 5. Map Sensor Operation

5. Map Sensor Operation

Connect a Vacuum Gauge to a Manifold Vacuum source.

Start the engine.

Allow the engine to idle.

NOTE: If engine will not idle, maintain a constant RPM above idle.

With the DRB III(R) in Sensors, read the MAP Sensor vacuum value.

Is the DRB III(R) reading within 33.9 mbar (1 in. Hg) of the Vacuum Gauge reading? 

  1. Yes  >> Go To 6
  2. No  >> Replace the Manifold Absolute Pressure Sensor. See FUEL SYSTEM .

    See POWERTRAIN VERIFICATION TEST - VER 2  .

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