Hi all, i'm facing a difficult problem on my 2004 MT GD3.
After replace my radiator, idel from 750 up to 820.
1. When i hit the gas uper than 2000rpm, it will stop at 1500 for a while before down to 820.
2. When the car stopped while driving or put into neutral, idel will auto go up around 2000rpm and hunting.
P.S. Already replace IACV, throttle, spark Plug and coil.