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Check Engine Light = Blinking? Stop the car immediately. Huge problems!!!
Check Engine Light = Illuminated? Check the following:
1. Gas cap - Needs to be on good and tight.
2. Oil Filler cap and Radiator Fluid caps - ditto, must be on tight.
3. There are hundreds of other reasons the check engine light comes on. Do get it checked out by someone with a Porsche System Tool 2 though... dealerships have them and they tell you why it's on... and can use it to turn it off.
If you have a mass airflow sensor out or O2 sensor out, your engine will starting running like crap and you could do damage to it. If it's nothing, the dealer shouldn't charge you much to reset it.
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