One user buy one MINI ELM327 Interface Viecar 2.0 for Android/Window, and yesterday he shared how and what this tool can do, he think this tool is cheap and working, his professional experience and objective option will do a favor to those who never use this tool. Therefore I would like to quote his original post in the following parts.

I got a new toy for christmas (from me to me) and have been playing with it quite a bit lately.

First, I ordered an ODB2 to Bluetooth adapter and hooked it up. Simply pair it to your Android device (apple is more complicated) like any other Bluetooth device. I did have to restart my phone before it’d pair but my tablet paired right away. This is the one I bought:

Mini-Elm327-Interface-Viecar-Obd2-Bluetooth-Scanner

the interface is highly customizable and will show TONS of parameters with the ISF ECU. I have gauges showing 0-60, 1/4 mile, speed (from ECU or GPS), Engine speed, torque, horsepower, afm, voltages, etc. It’ll also allow you to see and clear codes off the ECU. That alone was my excuse to buy it to the wife! There are different themes to the gauges, with infinite gauge layouts you can use.
I’d highly recommend this to anyone with an extra $15 lying around. The app is $4.99 and the device is $9.99.It’s a great cheap monitoring tool that I’m looking forward to using in autocross videos. It’ll do logging and everything that the more expensive tools will do for much less money. The options I mentioned are just a few of the monitor able parameters of the ECU. I’m in no way affiliated with this but I’m having a blast trying out this technology!
So far the best I’ve run is a 5.0 0-60 (tire spin in the cold).

This PDF step-by-step show you how to use MINI ELM327 Interface Viecar 2.0 OBD2 Bluetooth for Android/Window:

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iOBD2, a combination of hardware and app that supports iPhone and Android.

It’s at least as powerful as most low cost on-board diagnostics readers, possibly more so. But it gets the job done in a much more user-friendly way and throws some extra features into the mix. Best of all, it connects wirelessly to your smartphone.

Image	Product	Rating	Price
	ScanTool 426101 OBDLink MX Bluetooth: Professional OBD-II Scan Tool for Android & Windows	4.2	See prices & discounts
	Autel DS708 Automotive Diagnostic and Analysis System	4.3	Check price & discounts
	Launch CRP123 OBD2 Scanner ABS SRS Transmission and Engine Scan Tool	3.9	See prices & discounts
	INNOVA 3150 Diagnostic Scan Tool/Code Reader with ABS/SRS for OBD2 Vehicles	4.4	See prices & discounts
	Autel AL519 AutoLink Enhanced OBD ll Scan Tool with Mode 6	4.5	See prices & discounts
	ScanTool 427201 OBDLink LX Bluetooth: Professional OBD-II Scan Tool for Android & Windows	4.3	See prices & discounts
	BAFX Products 34t5 Bluetooth OBDII Scan Tool for Android Devices	4.5	See prices & discounts

Diagnostic Functions

Support vehicles with OBD II/EOBD protocol.
Read DTC
Clear DTC
Read data stream
Read freeze frame data, vehicle information
Oxygen testing
Mode 6 testing
Evaporative Emission System Leak Detection

iOBD2 Products Click The Following To Buy:

iOBD2 for iPhone

iOBD2 is a vehicle diagnostic tool for iPhone phones, and it communicates with these smart phones by WIFI. It supports OBDII/EOBDII.

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iOBD2 for Android

iOBD2 OBDII EOBD Diagnostic Tool for Android By Bluetooth.Input the car models or select the saved car models, then enter the system

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iOBD2 for iPhone/Android

iOBD2 Bluetooth OBD2 EOBD Auto Scanner for iPhone/Android with Bluetooth.It is an app for your car. It turns your iPhone/Android into an advanced display for your engine data.

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iOBD2 BMW Diagnostic Tool for iPhone/iPad

iOBD2 BMW is one of iOBD2 code scanner series which is especially works on BMW car models.It works together with your iPhone or iPad which is IOS system, communication with your iPhone/iPad by Bluetooth/WIFI, support all BMW car models all system diagnose.

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iOBD2 Diagnostic Tool for Android for VW AUDI/SKODA/SEAT

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iOBD2 BMW Function:

Data Loggers

Data loggers are designed to capture vehicle data while the vehicle is in normal operation, for later analysis.

Data logging uses include:

• Engine and vehicle monitoring under normal operation, for the purpose of diagnosis or tuning.
• Some US auto insurance companies offer reduced premiums if OBD-II vehicle data loggers^[18][19]or cameras^[20] are installed – and if the driver’s behaviour meets requirements. This is a form of auto insurance risk selection
• Monitoring of driver behaviour by fleet vehicle operators.

Analysis of vehicle black box data may be performed on a periodic basis, automatically transmitted wirelessly to a third party or retrieved for forensic analysis after an event such as an accident, traffic infringement or mechanical fault.

Emission Testing

In the United States, many states now use OBD-II testing instead of tailpipe testing in OBD-II compliant vehicles (1996 and newer). Since OBD-II stores trouble codes for emissions equipment, the testing computer can query the vehicle’s onboard computer and verify there are no emission related trouble codes and that the vehicle is in compliance with emission standards for the model year it was manufactured.

In the Netherlands, 2006 and later vehicles get a yearly EOBD emission check.^[21]

Driver’s Supplementary Vehicle Instrumentation

Driver’s supplementary vehicle instrumentation is instrumentation installed in a vehicle in addition to that provided by the vehicle manufacturer and intended for display to the driver during normal operation. This is opposed to scanners used primarily for active fault diagnosis, tuning, or hidden data logging.

Auto enthusiasts have traditionally installed additional gauges such as manifold vacuum, battery current etc. The OBD standard interface has enabled a new generation of enthusiast instrumentation accessing the full range of vehicle data used for diagnostics, and derived data such as instantaneous fuel economy.

Instrumentation may take the form of dedicated trip computers,^[22] carputer or interfaces to PDAs,^[23]smartphones, or a Garmin navigation unit.

As a carputer is essentially a PC, the same software could be loaded as for PC-based scan tools and vice-versa, so the distinction is only in the reason for use of the software.

These enthusiast systems may also include some functionality similar to the other scan tools.

Vehicle Telematics

OBD II is no longer only used by professionals and hobbyists to repair vehicles. OBD II information is commonly used by vehicle telematics devices that perform fleet tracking, monitor fuel efficiency, prevent unsafe driving, as well as for remote diagnostics and by Pay-As-You-Drive insurance. Although originally not intended for the above purposes, commonly supported OBD II data such as Vehicle Speed, RPM, and Fuel Level allow GPS based fleet tracking devices to monitor vehicle idling times, speeding, and over-revving. By monitoring OBD II DTCs a company can know immediately if one of its vehicles has an engine problem and by interpreting the code the nature of the problem. OBD II is also monitored to block mobile phones when driving and to record trip data for insurance purposes

Who says that a multi-functional and user-friendly car diagnostic code scanner has to cost a lot to be good? Whether you are a professional technician or an amateur auto mechanic like me, a $69 iOBD2 code scanner will be the only tool you need. This is a great choice for anyone who is tired of buying a dozen of code readers for different car makes and models or someone who just want to make their auto diagnoses easier.

iOBD2 code scanner is able to work with almost all the vehicles built after 1996. It makes it possible for mechanics to troubleshoot on their iPhones or Android phones via Bluetooth. The way it improves your auto repair experience is genius. You can diagnose vehicles as long as you have a smart phone and internet access, rather than taking it to your garage for every simple troubleshooting. It is obviously that designers of this OBD2 scanner have take customer feedback seriously.

What can iOBD2 code scanner do?

1.Read and clear DTCs from your engine system

When Check Engine light comes on, iOBD2 code reader will help you to retrieve fault codes from the engine system in only a few minutes. This works for most vehicles with ISO15765-4 (CAN), ISO14230-4 (KWP2000), ISO9141-2, J1850 VPW or J1850 PWM protocols.

2.Display DTCs definition

The iOBD2 scanner allows you to know what the DTCs mean instantly. It will make it easy for you to carry out further diagnoses and repair services.

3.Provide repair and maintenance tips for you

This OBD2 scanner provides guides and tips on how to solve the problems and maintain the vehicle according to the trouble codes.

4.Display live data related to ECUs

It reads all the running parameters that related to the ECUs

5.Oxygen sensor test

It provides you access to the on-board oxygen sensor monitoring test results.

6.EVAP system test

The device enables you to learn if the evaporative emission system and all the components are working properly at this time.

7.Correct vehicle speed

8.Boost or vacuum combo gauge

9.Reset engine timing

10.Other functions

Features:

iOBD2 scanner features a driving track function, which shows the driving track of a vehicle to give data and foundation for reference. Open the Location Services of the mobile, connect iobd2 to the vehicle, start up iobd2 APP, choose “My Dashboard”, and it will record the track of the vehicle. Quit “My Dashboard” then it will stop recording the track of the vehicle.