Need your help guys. This is my first time here. Im not a tech guy on cars. This is the problem I noticed, hindi ganito before: On start up ok pa ang idle hanggang sa uminit ang engine but when nakatakbo na ako let say mg 5-10 km tapos nag-stop ako, ang idle condition niya is para siyang hinihika (palyado) na halos mamamatay na ang makina. Note: this situation is kapag walang aircon. But if I switch the aircon, ok na ang idle niya. What is the cause kaya ng problem? Thanks!