Q: What is the application car model of the trip computer V-CHECKER A302 and V-CHECKER A303?
A: V-CHECKER A302/A303 is for the VAG, Skoda, Audi models. For example, the model V-CHECKER A302 support: Sagitar, Touran, Audi, Golf, Octavia, Magotan, Scirocco, Caddy. A303 Supported models: Polo, Golf, Passat, Bora and more.
Q: Why the driving speed displayed on the computer is lower than the car dashboard displays?
A: Almost all of the car speed displayed on the meter is not accurate, mainly at the security depot, design, 2-5% higher than the actual speed, that is someone on the freeway 140Km / h, says has not been photographed speeding, in fact, the real speed at this time is 120Km / h.http://www.obdresource.com
Q: Why is getting slower and slower speed but the instantaneous fuel consumption per hundred kilometers are getting higher and higher?
A: When the car is in neutral sliding, the oil consumption is not 0 as everyone thought, Look at the formula: = instantaneous fuel consumption per hundred kilometers (100 * Cumulative injection volume) / (speed * time). This time, less fuel injection engine, low speed , need to take more time if travel 100Km, when the speed is very low, the time is almost infinite. According to the formula, this time the instantaneous fuel consumption per hundred kilometers shown to be growing. Note: The instantaneous fuel consumption per hundred kilometers! = fuel injection quantity ah!

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Today I introduce a full new universal car diagnostic scanner which named as Vehicle Communication Scanner VCS Interface. VCS interface works as car diagnostic tool and cover more than 100 makes car models. http://www.obdresource.com

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Autel MaxiDAS ® DS708 setup
Step 1: Insert the Memory Card
Make sure the SD Memory Card is inserted properly into the MaxiDAS card slot.
1. Insert the SD memory card with the metal contacts facing down and pointing toward the tool.
2. Remove the card and insert it again if the SD card is not mounting properly.
Note: Do not force the SD card into the card slot. This may damage the card
slot.http://www.obdresource.com

Step 2: Connect the Hardware Model& Power Supply
To provide power to this unit, use an external power supply or simply connect this unit to a vehicle with a communication cable. Press the power button once and wait until the system boots up. After a brief moment, the MaxiDAS Diagnostic Platform displays and the tool is now ready to operate. See Chapter 4 on page 10 to assist you to find the DLC on your vehicle.
Note: The scan tool does not have a battery and can not be charged, make sure the unit is connected to a power supply before using the scan tool.
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