Diagnosticarea și repararea unei defecțiuni cu ajutorul unui tester.

Technology has taken giant steps forward: in fact, we can understand the origin of a fault with the help of modern diagnostic testers (provided by manufacturers, generally to businesses). They need to be connected to the control unit through a specific connection and once connected, we can read the stored faults. Without going into too many unnecessary explanations, this video will illustrate the functioning of the tester with subsequent repair of the fault. First of all, when starting the car, personally check for any unusual sounds or irregular engine operation (when you notice that the engine light turns on). After doing this, if you want confirmation or if you want to clear that light and understand why it turns on, take the tester and connect it to the diagnostic port (usually located under the driver's seat, near the fuse box, but its location varies from model to model). After doing this, once the problem is identified, if it persists after clearing it from the control unit and reappears during a subsequent diagnosis, intervene: in this case, we will hear that it is a problem with the injection pump, which is located under a plastic tube. Remove them and detach the pump, replacing it carefully without breaking the tubes by forcing them. Test everything and redo the diagnosis, it should have been corrected. Remember that it is better to do an initial diagnosis, clear the error, and then redo it later, as sometimes the error in the control unit has been there for a long time.