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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Engine Controls - Self-Diagnostics - 1.8L - XE, GXE) >> Diagnostic Tests >> DTC P0101, DTC P0102, DTC P0103 Or DTC P1102 >> DTC Confirmation Test "D"

DTC Confirmation Test "D"

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

With CONSULT-II

  1. Turn ignition on. Start engine and warm to normal operating temperature. If engine cannot be started, go to DIAGNOSTIC PROCEDURE  .
  2. Select DATA MONITOR mode with CONSULT-II. Observe MAS A/F SE-B1 voltage reading on CONSULT-II while increasing engine speed to 4000 RPM.
  3. There should be a linear voltage rise in response to engine speed increase. If voltage is as specified, go to next step. If voltage is not as specified, go to DIAGNOSTIC PROCEDURE  .
  4. Maintain the following conditions for at least 10 consecutive seconds:
    • ENG SPEED: more than 2000 RPM.
    • THRTL POS SEN: more than 3 volts.
    • Driving location: driving vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.
  5. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  . If 1st trip DTC is not detected, system is okay at this time.
NOTE: Use the following procedure to check overall function of MAF sensor circuit. During this test, 1st trip DTC may not be confirmed.

With Generic Scan Tool

  1. Turn ignition on. Start engine and warm to normal operating temperature. Select MODE 1 with scan tool. Observe MAF sensor signal reading on scan tool while increasing engine speed to 4000 RPM.
  2. There should be a linear voltage rise in response to engine speed increase. If voltage is not as specified, go to DIAGNOSTIC PROCEDURE  . If voltage is as specified, system is okay at this time.
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