2004 Sebring not firing on #1 cylinder

My Sebring started not firing on #1 cylinder although plug wire is delivering good spark to plug. Fault code is P 0301 I need some help with this issue. Thanks in advance for any info. Sam, near Detroit

Reply to
SSB
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Change the plug. The insulator is probably cracked.

Reply to
Woody

Isn't the vehicle still under warranty?

Reply to
jcr

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