What have you done to your car to have a MAFia installed. I have one installed used as an extention for MAF. I relocated my MAF to my intercooler in front of my radiator.
Prior to relocating my MAF I needed MAFia because my MAF was maxing out during dyno run around 5000rpm. Tuner installed MAFia on 4 setting tuned car right up to red line. But I had an idle problem, when ever I came to a stop idle would drop down to 500rpm and surge between 600 to 800 rpm. Drivability was awlful coming out of 1st gear, 2nd thru 5th was alright. Come to find out my MAF sensor was too close to my throttle body. Talked to procharger they relocated maf into intercooler I did the same. I used the MAFia as an extension for MAF. MAfia set on zero setting. Had car retuned and it's running and idling good.
__________________ 2005 Mustang GT, p1sc1 procharger w/3 core inter cooler, 10 psi boost,, 39# fuel injectors, kook long tube headers, high flow cats, x pipe, magna flow mufflers, che lca, anti squat brackets, che tubular lateral stiffener bar, 1 piece aluminum drive shaft, che engine torque limiters, hurst shifter, A pillar boost and oil press gauges. Steeda lowering spring kit. CM delete plates. New eaton posi rear end(600rwhp), 3.73 gears. MAfia maf sensor, 470rwhp, 423ft# torque. | 
Won't Run With MAF/MAFia Plugged In??? 
Got the Procharger kit used and the MAFia came with it. Didn't have the little dust cover on it when I got it, but I didn't think anything of it at the time. I know that it is now tuned for the MAFia so if I try to run it without it will run like crap correct?
