1999 Maxima problem please help
I own a 99 Nissan Maxima, and have been trying to figure out what my problem is for months. So i had a check engine light on i checked the codes that triggered the light(s) and it came back with 1. multi cylinder misfire 2. Knock sensor. I was noticing that the car would misfire within the first 5-10 min of driving it for anywhere between 1-5 min and the car would idle fairly rough my guess at that point triggering the knock sensor. Usually it would go away after that but sometimes it would happen 2-3 times a few minutes apart. I cant remember it misfiring again once the car was nice and hot, but the car always idles a bit rough.
I replaced the plugs with oem platinum plugs. I wanted to check the ignition coils as that has been one of the most common solutions Ive heard of for this problem, but im not sure exactly how to check them. So I'm hoping someone can help me with the solution to this problem, or at least point me in the right direction. Thanks so much for any help you might be able to throw my way.
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