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07-25-2011, 08:26 AM
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  Join Date: Jul 2011 Location: new orleans
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(Thread Starter) |   Not Ranked : 0 score  CX-7 cylinder 4 misfire code? need help Car is running horrible? any sugestions? Car is stock with no upgrades except wheels. 86,000 miles Bmcgough likes this. |
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07-25-2011, 01:27 PM
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  Join Date: Jun 2010 Location: li, merrick, new york
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| Not Ranked : 0 score Dirty valves, bad injectors, compression. I would do a compression test and make sure u have power and cycling ground at your coil. |
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07-25-2011, 01:34 PM
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| 6 mods and some Kool-Aid  Join Date: Mar 2008 Location: Jax, FL
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| Not Ranked : 0 score Tke a look at this thread. http://www.mazdaspeedforum.org/forum/foru...misfire-68182/ I think the Po302=cyl #2 and P0304=#4. Might be why. |
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12-13-2014, 08:39 AM
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| Not Ranked : 0 score I have 07 cx 7 with 86k miles and have a misfire in cyl 3. took it dealer and they said piston ring is bad. issue started with a weird idle during cruising speeds, thats it. luckily I have ext warranty and getting a mild rebuild with new piston rings, connecting rod bearings, new EGR, and new motor mount under warranty. |
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08-01-2018, 07:47 PM
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| Not Ranked : 0 score 2007 Mazda CX 7 Misfire Cylinder 4 Hello, I’m happy to find a forum without the vendors & junk that accompanies their ads. I’ve been having a horrible time trying to fix my car. I’ve replaced plugs, coils, and the computer. It’s becoming very costly & I desperately need to find a solution. I’m hoping someone here has some experience with this issue and can share some wisdom!  |
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