I have a 1998 Mercury Mystique LS with a V6 engine.

Recnetly i have been getting these problems:

1. check engine light is on. Happened before and I have changed the O2 sensors already.

2. a noise problem when the car is started, esp. during winters. It's like a howling sound from blowing a shell. I heard it can be a idle speed controller issue due to the airflow.

Please help and PM me if you have a solutin.

Thanks