P0102 - Mass Air Flow (MAF) Circuit Low Input. The MAF sensor circuit is monitored by the PCM for low air flow (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine running the air flow (or voltage) changes below a minimum calibrated limit, the test fails. MAF sensor disconnected. Genuine Bosch Mass Air Flow Sensor (MAF) Ford Focus ST225 2.5 - Ford. Direct replacement part; Mass air flow meter on the Focus ST 225 and all 2.5 turbo units can cause running issues. This unit is a direct replacement part for all models ,all years. Genuine Bosch product, as used by Ford OE. Quick test to tell if Mass Air Flow Sensor is bad or dirty which could be causing your car or truck to run bad or keep cutting off. Focus ecu pinout. 1 shift solenoid - B gn/bu. 2 not used. 3 IMRC module signal wh/rd. 4 Transmission range sensor - reverse gn/bu. 5 not used. 6 not used. 7 transmission range sensor - 1st / EVAP vent valve gn/wh - bk/og. 8 transmission range sensor - 2nd gn/og. Hi everyone. I have a 53 plate 1.4 focus lx. Does it have a maf sensor, if so where. I've had a look but can't find it. Am I looking in the wrong place. Any pictured would be helpful. The problem is that it has a slight miss at low revs ie pulling away from junctions etc. It's had new coil plugs What does Mass Air Flow Sensor do? Before going into detail on what will happen when you disconnect the mass airflow sensor it is important to understand what it actually does. If you want a technical definition of how a mass airflow sensor works, then you can take a look at the article we have here , but for this article, we will just cover A8yWbvU.

focus st maf sensor location