LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Eagle >> 1992 >> Premier LX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> No-Fault Codes >> Test NF-5A - Checking Map Sensor Calibration
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test NF-5A - Checking Map Sensor Calibration

  1. Turn engine off. Install vacuum "T" and vacuum gauge in MAP sensor vacuum hose. Start engine, and let it idle. Using DRB-II, observe MAP. If vacuum gauge reading is within one in. Hg, test is complete.
  2. If reading is not within one in. Hg, turn engine off. Disconnect vacuum gauge from MAP sensor vacuum hose. Connect an auxiliary vacuum pump to MAP sensor. Apply 5 in. Hg to MAP sensor. Read and record MAP sensor voltage. Increase vacuum to 20 in. Hg. Read and record MAP sensor voltage. Subtract voltage recorded at 20 in. Hg from voltage recorded at 5 in. Hg.
  3. If difference is 2.3-2.9 volts, repair restriction in vacuum hose to MAP sensor. Perform VERIFICATION PROCEDURE VER-2. If difference is not 2.3-2.9 volts, replace MAP sensor. Perform VERIFICATION PROCEDURE VER-2.
scientia non olet · About LEMON Manuals