![]() We recommend adjusting these limits higher to take full control of the throttle. There are two main offenders that will result in throttle closures: Load and Boost. The factory tune allows the throttle to close to less than 20% (of the 82% max) which can result in extremely consistent torque delivery, but neutered performance. Throttle Closures – The primary method of controlling torque on these cars is done with the assistance of the drive-by-wire throttle system (factory tune). While some Ecoboost vehicles do have a MAF sensor in place, it is not used for airflow calculations. ![]() MAP Based – These vehicles use a MAP based airflow system. Here we will go over a few of the basic details and terminologies that are specific to Ford before we begin tuning on a COBB Accessport equipped Ford Ecoboost vehicle. ![]()
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