Suddenly runs rough. Code reader yellow light. EVA icon red

asker

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Hello, suddenly vehicle ran rough and noisy I was close to home so didn't drive far. Innova ODBII 3040e diagnostic reader has yellow light and the EVA icon is red. I am suspecting perhaps a bad coil.

Any input? Thank you!!
 

Trainmaster

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A code reader should tell you of any miss. A good one will tell you the cylinder that has the miss. Red and yellow lights don't mean much to me...
 
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