[Qasimja]

so i was getting a code for the thermostat 2EF4 but i had already change the thermostat and water pump and was told it could be a thermostat sensor so i changed that cleared the code and drove the car around for a day or so put about 80 miles on it that code did not come back but another code did which said not present before now says present for the Disa valve is this something i need to be concerned with?

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