Cadillac CTS The mid-sized sedan that has grown the popularity of the Cadillac brand with it's low price and sleek styling

14 CTS 4 Coupe check engine light

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Old 09-29-2018, 09:30 AM
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Default 14 CTS 4 Coupe check engine light

I recently changed the oil and filter in my 14 CTS 4 Coupe using Valvoline full syn dexos approved and a Mobil 1 cartridge filter. I also replaced the air filter, after driving the car a day later the check engine light comes on and has not gone off for four days now? Any ideas? The car is running flawless.
 
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