Below is a "step-by-step" instructions on how to get your OBD-II reader to pair with Torque on your Android device.
First CONNECT the OBD reader to your OBD-port on the car.
1. Go to Bluetooth Settings of your Android device and find OBDII.
2. Now Pair the device with the passkey "1234".
3. Open Torque after downloading it from Play Store.
4. Hit the Settings Menu and go to "Vehicle Profile". Hit "Create New Profile" and input the following data.
Try to input "accurate" values for weight by weighing your car at a weigh bridge, preferably with a full tank of fuel.
While setting up the car info, kindly fill a full tank and immediately set the "Current Fuel Level" to 100%. This will ensure you get accurate weight and FE figures as well.
Leave the rest of the settings you are not too sure of on standard readings only.
4. Now go to "Settings" and look for "OBD2 Adapter Settings".
5. Now hit the "Choose Bluetooth Device" and click on OBDII device you paired with initially.
6. Tick the Faster Communication, Enhanced MPF Calculation and Use Vehicle Fuel Level Sensor as shown below.
7. You are done setting up the device, now go to Realtime Information and in one of the screens you will find this screen. This screen is used to check your cars performance figures.
8. Now switch to another screen and hit empty screen, then "long press" and hit "Add Display" till you get the screen below. I always use Half Dial (Meter).
9. Then you can set-up the screen like I've done on my Note 1. These are the PIDs I usually monitor.
10. Go back to the main screen and rotate the buttons till you see "Adapter Status". If everything is fine, you should get a reading like this.
11. To check what all sensor data you will be able to see, scroll down to the bottom of this page to see..
Now you are done pairing your OBD-reader to your Android using Torque. Just go out for a drive now and you will see the values changing on the screen.
To clear the Error Codes, just hit the "Check Fault Codes" button on the main screen and follow the on-screen instructions.
A few important tips:
1. Do not try using the same OBD-II reader on multiple cars. Some cars we've noticed that they give out a sudden surge of high current when the OBD-reader is fitted and ends up damaging the reader.
2. Try not to keep plugging and unplugging the device every now and then. The connecter gets loose over a period of time and might not connect properly. In the Cruze we just leave it plugged in all the time, however Cruze has a protection system to turn off all electricals in the car after 10 minutes. So check your cars functions to ensure that the OBD-reader does not drain the battery.
3. Sometimes if you get any connectivity issues, then just try re-pairing the OBD-reader or re-starting Torque.
4. Always keep your Android device plugged in to a charger, Torque will drain your battery like crazy.
5. Try to take screenshots from time to time to ensure you are able to do comparisons.
6. Try to get the weight and fuel level inputs as accurate as possible.
7. Best HP and Torque values will be seen by dropping the car to about 1000 RPM in 3rd or 4th gear and then revving it to about 4000 RPM on turbo diesels and about 6000RPM on petrols.
8. Hit the Settings Option and change the "Units" to Liters from Gallons etc.
And no, using the OBD-reader will not transfer virus to your ECU or let any hack your ECU or steal your car. It is absolutely safe. The OBD-II reader is used only to read the data the ECU sees. And also to clear "Error Codes".
If you have any doubts, kindly post them here and one of us shall try to clear them