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  1. 2.3L I-4
    Hello All, I have a 2003 2.3L Mazda 6 with 156k miles that has recently started throwing the P0300 code. Here's the story: Winter here, weather in the 20's, drove to work(~10 miles, no highway) no issues. Car sits for ~4hours, started up and was immediately missing very frequently. I tried...
  2. Mazda 6 3rd Generation (2013-Present)
    Hi, I have a 2017 Mazda 6 Touring, it was running great for a while of owning it but then I started having an issue at idle where my rpms would shoot up to 2-3k, it was somewhat intermittent at first, but then it would happen every time it was in idle. It is also running very choppy at stops/red...
  3. Mazda 6 1st Generation (2002-2008)
    Soo I have the 03 Mazda 6 3.0 with 160k miles. The engine was rebuilt bore .50 over, cat back flow master exhaust. One day the car started missing I cleared codes it was good for about 4 months then one day it started missing so bad I couldn’t drive it. So it got towed and the spark plugs were...
  4. 2.5L I-4
    my car started idling a little erratically driving home one day. the next day the idle got worse and ran rough. Whenever i put into drive or reverse it shakes. I checked the code on scanner and got P0300. i swapped the ignition coils with three new ones i happened to have and still got the...
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