P1101 FORD Possible Causes
- Faulty mass air flow sensor
- Air leak before or after the sensor
- Mass air flow sensor harness is open or shorted
- Poor electrical connection in the mass air flow sensor circuit
How to Fix P1101 FORD Code?
Start by checking the “possible causes” listed above. Visually inspect the wiring harness and corresponding connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What Does It Mean?
Before replacing the mass air flow sensor, try replacing the air filter and cleaning the mass air flow sensor with mass air flow sensor cleaner. Reset the code and drive the vehicle. If the code returns, it may be necessary to replace the mass air flow sensor.
When Is the Code Detected?
The Engine Control Module (ECM) detected a mass air flow sensor (MAF) signal that is higher or lower than the calibrated limit
Possible Symptoms
Check engine light on (or service engine soon warning light)
P1101 FORD Meaning
The mass air flow (MAF sensor circuit is monitored by the Powertrain Control Module (PCM) for an out-of-range air flow (or voltage) input. If during engine start-up, the air flow voltage signal is higher than 0.27 volts, the test fails. Similarly, if while the engine is running, an air flow voltage signal is not between 0.46 volts and 2.44 volts, the test fails.