P1100 - Mass Air Flow (MAF) Sensor Intermittent
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1100 - MASS AIR FLOW (MAF) SENSOR INTERMITTENT
| Description: | The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON, engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored. | ||
| Possible Causes: |
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| Diagnostic Aids: | While accessing the MAF V PID on the diagnostic tool, lightly tap on the MAF sensor or wiggle the MAF sensor connector and harness. If the MAF V PID suddenly changes below 0.23 volt or above 4.60 volts, an intermittent fault is indicated. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to DC: Mass Air Flow Sensor STEP 17 | ||