Find the location of the MAF sensor in your Focus, it will be somewhere between the air filter box and the throttle body. Unplug the electrical connector. Remove the sensor from the housing. UK/Ireland Location: Other/NonUK. Posted October 27, 2013. The Focus MK2/MK2.5 with 1.4 and 1.6 Duratec (Sigma) engine do not have an Idle Air Control (IAC) valve or Mass Air Flow (MAF) sensor. The amount of air going into the engine is calculated by the PCM using a Manifold Absolute Pressure (MAP) sensor which is mounted at the intake manifold. FORD FIESTA MAF Mass Airflow Sensor Replacement MK7 ST MAF SENSOR Check out our Amazon store for the tools that we use in our videos: www.amazon.com Ford MAF Sensor Testing, 12V PowerYou do not need a Scan Tool to test the Mass Air Flow Sensor on your Ford. Here, we'll walk you through the whole process o It says the sensor attached to the stock air box is a MAF. The sensor on the intake manifold it says is a MAP, and the sensor on the cold side of the intercooler is a combined MAP and temperature sensor. Here's the picture and the description table: When the sensor is fully entended (actually the last 2-3mm of movement), there is no resistance across the 2 closest contacts, inifinite resistance across all other combinations of contacts. When the plunger is depressed slightly (between about 3-5mm from fully extended) there is infinite resistance across all combinations of contacts. .

focus st maf sensor location