Engine & Transmission Monitor List for Ford Vehicles.Tech Bulletin - Configuring a Base Map for a Big-Turbo Ford EcoBoost.Tech Bulletin - Ford Accesstuner - WGDC Compensation Modes.Tech Bulletin - Ford Accesstuner - TIP Boost Error Scaling Issue.Tech Bulletin - Focus/Fiesta ST CCF Gen2 - VE Compensation (VCT) Tables.Ford Focus RS - 2016 GRCK2 Accesstuner Definition Upgrade to 2017 GRCK4 Strategy.Accesstuner Software Bulletins for Ford.Custom Feature Cruise Control Button Assignments.How to Calculate Offset and Gradient for Pressure/MAP Sensors.Saving a map in Accesstuner Pro so anyone can view (Leave a map unlocked).Accesstuner Tutorials: How to set default log save file.TIP – Throttle Inlet Pressure (Pre-Throttle)īefore anything make sure you go over our Pre-Tuning Guideįor information on using our software check out these areas for specific articles.CL/OL – Closed Loop/Open Loop (for fueling tables).BL – Borderline (for ignition timing tables).HDFX – High Degree of Freedom Executive.MAP – Manifold Absolute Pressure (Post-Throttle).ECU – Engine Control Unit (also known as PCM).DC – Duty Cycle (used with various solenoids).Those familiar with other EcoBoost Fords will see strong similarites between KOM and OAR - KOM simply acts as an inverted OAR. The value will also impact other strategies like Low Speed Preignition (LSPI). Knock Octane Modifier (KOM) - A learned multiplier for ignition timing where optimal numbers are +1, and -1 will indicate less than optimal settings or fueling.If you are hitting your load and torque targets and the transitions are smooth throttle closure can be an ideal means of hitting peak torque quickly while also maintaining a safe torque value. All throttle closures are not necessarily bad. Adjusting the Wastegate Position Base table is the best way to help reduce throttle closures. The most common throttle closures will happen at peak torque when TIP Actual is likely surpassing TIP Desired. 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. Throttle Closures – The primary method of controlling torque on the Raptor is done with the assistance of the drive-by-wire throttle system.MAP Based – These vehicles use a MAP based airflow system. Watching the Spark Source and HDFX monitors will give you a good idea of which set of tables are being utilized at any given time. The majority of heavy load operation will take place in the borderline timing tables, however this can be clipped by any other timing table from the other categories if they are lower. There are up to 16 primary tables for each method, along with accompanying compensations. The ECU also allows full dynamic advance and retard based on octane learning and knock sensor feedback. Ignition Control – The Raptor consists of three primary methods to control spark: MBT, Borderline, and Cylinder Pressure. Raising wastegate position directly with out modifying other limiters will have little to no impact other than to cause undesirable PID activity and oscillations.įuel Control – The Raptor operates in a constant closed-loop state, constantly utilizing the A/F values in its tables and making closed loop adjustments via the feedback from the factory wide-band O2 sensors (1 per bank). The general strategy of the Raptor is to convert and crosscheck mainly torque, load, and airflow, choosing the lowest value, and then clipping the engine output at that value. Engine torque is calculated based on numerous variables such as: pedal position, air flow mass, knock, KOM, and RPM. Our OTS maps should have good base settings which can be modified further if need beīoost Control – The Raptor does not directly target boost in stock form but rather a target engine torque. The axes are generally index based and may require manipulation to both the index and/or the data to properly display graphs or to utilize greater breakpoint resolution. On tables that would require it, we have broken these out for editing in separate folders. In these tables both the X and Y axis have "paired" data. 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.ģD Breakpoint Setup– The Ford ECU uses a new style of 2D axes in select 3D tables. Introduction Getting to know the Ford F-150
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