Ok yall know my probs with thr car. The stock MAF housing has been replaced with a 75MM C&L the sensor and harness is tsock Ford. The TB is 75 MM Accufab the Upper lenum is $70mm C&L. Maybe my ecc is *****ig about it. I have a hypertech but I WILL get a chip that has the additions to my car in place. Do I or should I replace the sensor? the harness or what to make this work? It runs fine but if it make smy engine light stay off and get the full benefit of the extra power yeah it needs to be done. I heard a02 MAF sensor is the way to go. Any others am I lost. See a lot of different things when I searched but I just wann get my facts straight.