Tech Support Developing version of FORScan for iPhone, although WiFi is generally faster than Bluetooth, according to FORScan logs sent to us by those of our users who own them, their China adapters demonstrate very poor performance, much worse than ELM327 Bluetooth. UOBDII.com engineer test and analysis, find out the source of the problem is the most important parameter of every adapter – minimal response time (ping). Minimal response time (ping) – minimal possible time from the moment request to adapter is sent to the moment the response from adapter is received. We rate the minimal response time using the following rough scale: FORScan shows us 115 ms for ELM327 WiFi. This is not just poor, it is simply not acceptable; as it may affect not only performance but functionality (complex CAN requests may fail): We have found out that the problem is in a default TCP-serial timeout setting. Here is how to fix it: 1. Connect ELM327 WiFi adapter to OBDII jack of the vehicle, wait for several seconds until the adapter is loaded 2.
Connect your computer or other device to the adapter over WiFi. Open Web browser and type address of your adapter to the address string of the browser with ‘http’ prefix, for example: 4. Enter login ‘admin’ and password ‘admin’. Note: login and password may be different. If admin/admin doesn’t work, contact your seller for the actual password.
As a result, you should see something like this (source of our problem is marked in red): 5. Change the value from 100 to 1 (not 0!) and click apply. Make sure the change is applied (after adapter reboot) 7. Now check result of the change in FORScan: As we can see, response time is much better now. Note: all the actions described above were performed for a: Procedure for other adapters should be similar, although Web interface, credentials etc may differ.
Depending on the scan tool, the ELM327 or OBD2 software will basically communicate with the scan tool to show you the specific vehicle parameters, i.e. Reading and showing the meaning of the check engine light on the dash. Related: OBD2 App for Android, iPhone, and Windows.
There are a lot of applications compatible with ELM327 Interfaces. Here is just few of them: Brand Specific ELM 327 Apps:. Jeep Grand Cherokee 2.7 CRD engine and transmission fault codes reader an erase software. is a vehicle diagnostic software with advanced functions. It allows you to perform various diagnostics tasks on Fiat, Alfa Romeo, and Lancia vehicles. designed especially for Ford, Mazda, Lincoln and Mercury vehicles. The software supports specific features of the manufacturer protocols, making the FORScan one of the most powerful in work with these models than any regular OBD2 scanner. The software is divided into two subsections: the first manages the standard EOBD diagnosis, while the second analyzes the car's performance.
Both software modules have support for the EOBD ISO9141-2 and ISO14230-4 communication protocols, compatible with most of the cars registered since the year 2000.