![]() The TwEECer is an adapter which connects to the J3 service port of an 87-95 Mustang EEC-IV. Many actual raw MAF transfer functions are listed “pound mass per clock tick” rather than “pounds per hour,” so this can lead to confusion when attempting to copy a MAF transfer function from one model into another if the normalization is not correct. Clock speed of the processor determines the sampling rate, so time- based sensor inputs such as MAF must be corrected before processing. The actual scaling depends upon the clock speed of the processor being used, but it always works out such that 0 to 5 v reference signals become 0 to 1,0. Some software packages normalize this to only show voltage values in the editor others leave it as counts. This guide aims to explain some of the basic knowledge and terminology involved in tuning Ford EEC. Ford Motor Co., Dearborn, MI Date Name(s). Ford Tuning - Engine, Gas (Non Ecoboost, Australia) Ford Tuning - Engine, Gas (Ecoboost). A friend told me that HPTuners can work with it. EFI Live is a comprehensive tuning software. ![]() Ford EECs convert most voltage inputs from sensors (MAF, TPS, etc.) into an A/D count before actual processing. ![]()
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