Zt question
Hi all hope this is ok and everyone is well. Got a 1.8t zt the idle hunts between 750-850 it dont sound very good most thinks are replaced headgasket inlet gasket coil leads lambda boost solenoid boost pipes/vac hoses plugs thermostat temp sensor tps iacv those are parts that have been replaced and swapped with known working parts i just cannot solve this idle prob any suggestions also it was there b4 head gasket was changed. Thanks
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