Look to go down I fell off the system that handles your car but speaking in a general way when you turn on a car in this case without a/c if the minimal engine revolution is correct and you turn on the A/Cy the loss of power is not compensated, it can be according to the case we say of carburetor without Ecu (computer) it is compensated by means of an amuming valve activated by empty of the engine, it arrives by the connection of the engine. ELECTRICAL SIGNAL TO A SEENOID THAT LET THE VACUE TO THE VAL. of acceleration.
Now when they carry ECU it is an electric conservative step valve (2 cables) or the IAC valve (generally 4 cables) this will depend on the type of electronic injection I drop your case I hope this general information serves you in case of the IAC valve and in passing they are generally washed.
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