9/14/2023 0 Comments Cobb tuner gti![]() ![]() To setup displayed parameters on the live "Dashboard" press "Ctrl+F" to configure the logged parameters in the "Log List" tab, and those displayed in the Accesstuner "Dashboard" through the "Gauge List" tab. Select the directory in which to store your data logs under the "logging" tab.ĭisplay and Log critical engine parameters while testingĪccesstuner software allows the user to visualize, sample and record critical engine parameters including sensor information and commanded engine function. Attach the OBDII cable to the vehicle and the associated USB to the computer and Accessport. Configure the Accesstuner software to connect to your vehicle. Open the selected starting point calibration in the Accesstuner software. If slippage is notice it is recommend to reflash to a lower power level to avoid further damage.Ĭonnect the Accesstuner Software to the Accessport equipped VW 2.0t During development it was found that power levels in excess of ~390 Ft.Any large turbocharger upgrade must also be accompanied by an appropriate MAP sensor. Beyond the limits of the stock MAP sensor the ECU has no way to properly control the engine. Even stock vehicles produce sufficient airflow to push these sensors close to their limit. Engine control is entirely dependent upon accurate readings from the MAP sensor.Be particularly cautious when any mechanical component of the boost control system is altered. Be cautious when adjusting boost control parameters. This boost level can generate enough cylinder pressure to cause engine damage. The stock turbocharger can produce boost levels in excess of ~29 psi.These clutch type coupling systems can generate excessive heat and wear under heavy load/long time operation on un-linked type chassis dynamometers caution is advised. ![]() ![]() The Golf R uses the Haldex system, which incorporates an electro-hydraulic clutch to send power to the rear wheels. The Golf R is capable of operating in dyno roll test mode, this deactivates the AWD system and will run in FWD only mode.For actual engine temperature it is recommended to log "Coolant Temp." on the accessport or in Accesstuner. The coolant temperature gauge on the dash is an inferred measurement and can raise to "overheat" conditions after multiple gear, wide open throttle runs or a single 4th gear pull in higher ambient temperature days.If the vehicle being dyno tested is equipped with Active Lane Keep (Assist) it must be disabled as unexpected steering input could result causing a loss of control on the dynamometer.In order to turn it off you'll want to change the LC master switch to 1 which completely disables the system. Depending on how the COBB LC system is configured launch control may be enabled by default.The Accessport allows you to monitor each cylinders knock events as well as compensations for coolant temperature, intake and charge air temperature as well as other base ignition compensations. It allows for individual timing corrections per cylinder per event. Ignition ControlThe VW 2.0T has a complex timing strategy.A diagram of the logic and calculations can be found in this document. Engine load is converted to a requested torque, the ECU then uses a dynamic boost level to achieve its requested torque. Engine load is calculated based on numerous variables such as: pedal position, air flow, boost and RPM. Boost ControlThe VW 2.0T indirectly targets boost through torque request lookup and load tables.Fuel ControlThe VW 2.0T operates in a constant closed-loop state, constantly utilizing the A/F values in its tables and making adjustments via its equipped wide-band O2 sensor.Frequent air filter cleaning and/or replacement is recommended for best performance and engine protection. Changes to the intake configuration will not require tuning but heavily contaminated air filters of both OEM and aftermarket construction were found to reduce power output at moderate to high engine speeds. The VW 2.0T utilizes a manifold absolute pressure (MAP) sensor located in the intake manifold to measure the mass of air entering the engine. Unlike the Mk6's MAP/MAF based system, the platform is equipped with only a MAP sensor that is utilized for engine operation calculations. Airflow Pressure BasedThe Volkswagen MQB platforms utilize a MAP based airflow system.Here we will go over a few of the basic details and terminologies that are specific to this platform before we begin tuning on a COBB Accessport equipped Volkswagen. ![]()
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