The kind of obd code reader is easy to use, and cheap?

provided u have an android or iphone....

there are OBD2 bluetooth adapters for sale out there... if compatible, buy those and plug into ur ECU and u can download apps to ur phone for monitoring etc via bluetooth
 
As long as you only need to read and erase fault code, most readers will do. But if you plan to observe engine parmeters, program control units and much more, you need a higher tech diagnostics like autoland or autologic
 
where can buy this thing other than thru internet?
We can find product information to the company, some company is selling a diagnostic tool, the obdmate om580 is good product Via the Internet,Buy Car Diagnostic Tool to check engine,Easily determines the cause of the “Check Engine Light ( MIL)”, it is convenient .
 
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