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on the 2004 explorer the Mass Air Flow module and air filter cleaner cover are a 1 - piece unit. but on the 2002 explorer it is a 2 - piece unit. would there be any problems utilizing the 2002 Mass Air Flow module on the 2004 explorer (the Mass Air Flow sensor is different on the 2002 vs. the 2004) and regarding the Mass Air Flow sensor is there a harness adapter or would the wires have to be spliced together. I have not seen a Mass Air Flow module that the 2004 sensor would fit in and connect with the cold air intake setup.