#HOW TO USE A COBB ACCESSPORT V2 PRO#
The enhanced AccessTUNER Pro software now offers multiple ECU control modes to give the professional tuner and AccessPORT user a wider choice of engine modifications and tuning options. However, in a motor sports application where power levels are extremely high and intake airflow configurations are less standardized, the use of a MAF sensor can be highly limiting. Vehicles with stock engines and mild upgrades can utilize the MAF sensor with excellent overall results. The most common way to measure load in modern vehicles is with a mass air flow sensor (MAF).
Precise and consistent load calculations along with feedback from other critical sensors allow the ECU to accurately control ignition timing, variable camshafts, and fuel delivery. The most basic function of an engine control unit (ECU) is to measure airflow and its translation to engine load. This development addresses the growing demand within the Subaru enthusiast community for motorsports grade engine management without sacrificing the drive-ability and sophistication inherent in the OEM ECU.
The new “Speed Density” implementation instructs the ECU to calculate load by using temperature and manifold absolute pressure (MAP) as opposed to the OEM code that utilizes mass air flow (MAF). COBB AccessTUNER Pro Supports Speed Density Tuning COBB AccessTUNER Pro Supports Speed Density TuningĬOBB Tuning is proud to announce the availability of AccessTUNER Pro “Speed Density” support for all Subaru drive-by-wire vehicles equipped with a COBB v2 AccessPORT.
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