![]() I bought this originally to tune up my 09 Cobalt SS Turbo because I installed the K&N Short Ram Intake and caused the LTFT's to spike 10-12% lean. I have been using SCT's Pro Racer Package (SCT Advantage software) for almost 10 years but one of the biggest challenges I faced as a DIY tuner is that tuning the MAF was always a pain since I had to sift through lines of LTFT/STFT data.Įnter HP Tuner's VCM Suite. ![]() I was hoping the OEM MAF calibration would get me close enough. However, I decided to actually datalog the LTFT and STFT (Long and Short term fuel trims) earlier this year and wasn't too thrilled to see them being way lean, as expected with an aftermarket intake. I have the Steeda Cold Air Intake, and have been using the Shelby GT MAF Transfer Function for just over 2 years without any problems. With Slower Duration set on the interface, I can get over an hour of data on the Interface with the Chevy. I wish it'd work, because it is a lot easier to just record the data and then go home to analyze it on the laptop - versus lugging the laptop along. ![]() ![]() This should apply to other S197 Mustangs as well, but Note: I still cannot get the MPVI Pro interface to do standalone logging on the 07 Mustang. ![]()
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