LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2050 (Engine Controls - Diagnostic Subroutines - 6.4L 99R Diesel -- F250-F550 Super Duty) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> P1103 - Mass Air Flow Sensor In Range But Higher Than Expected

P1103 - Mass Air Flow Sensor In Range But Higher Than Expected

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P1103 - MASS AIR FLOW SENSOR IN RANGE BUT HIGHER THAN EXPECTED

Description:  The powertrain control module (PCM) monitors mass air flow values. If, during a key on engine running (KOER) self-test, the MAF sensor values are greater than the calibrated values, the test fails and a DTC is stored in continuous memory.
Possible Causes: 
  • MAF sensor
  • Leaks or restrictions in the intake air system and CAC
Diagnostic Aids:  When EGRP is 0% to 50% between 700 RPM and 2400 RPM and the MAF/IAT sensor reading is greater than a maximum threshold value, a concern is indicated.
Application    Key On Engine Off  Key On Engine Running  Continuous Memory 
All   - refer to PINPOINT TEST J . refer to PINPOINT TEST J .