Last week, for no reason, the car didn't start, I tried to scan for errors using the VAG-COM and multiecuscan but it won't connect to the engine ECU as it used to, I tried with the ABS ECU and it connects right away.
Couple of hours after I gave up, the car just starts fine with no warning lights, but still no connection with the ECU. So I took the car to the mechanic to see if we could connect with the "real deal" scanner, and nothing.
Any ideas what could be wrong?
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