P0430 then p0306
10-29-2011, 02:16 PM
#1
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P0430 then p0306
Got p0430 code in the morning coming home from fire station got p0306 later in the day, are my plugs bad or is the p0306 a result of the p0430 any help or common problem would be greatly appreciated
2007 JK
60962 miles
2007 JK
60962 miles
10-29-2011, 04:36 PM
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P0430 is catalyst efficiency bank two, would needing two o2 sensors cause the cylinder misfire, probably gonna to take to mechanic on Monday to have him look at it
10-30-2011, 04:13 PM
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Hit and miss on burning oil, usually if oil is changed every 3000 miles no problem. However jeep has not been running as much since at least June, been riding motorcycle to and from work. For example 1300 miles under when scheduled change was for 9/23/2011. And then usually try to hypermile when I do drive it, 1500 rpm's or below pretty much everywhere I go.
10-30-2011, 06:33 PM
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I seriously would pull and look at the number 6 plug before taking it in.
Also, I don't think your engine is going to like the 1500 rpm thing. It is designed to perform best a little higher. I just don't know that it will have great combustion at 1500. Pull that number 6 plug.
Also, I don't think your engine is going to like the 1500 rpm thing. It is designed to perform best a little higher. I just don't know that it will have great combustion at 1500. Pull that number 6 plug.
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11-22-2011, 01:08 PM
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Well been awhile so finally took it to dealership because I mistakenly thought that changing all six plugs that if it was a cat converter issue that is was a federal warranty after six hours they comeback and say only cylinder six missfire and they would have take the engine apart to find out why. At whits end I have read about people changing PCM's (which I don't know what it is) or possibly the coil pack, fellow forum members I am not a gearhead, just a fireman with not enough time to spend with family let alone to form over for a new engine any suggestions of things I could try and possibly with the help of fellow fireman at my station could do
12-08-2011, 02:29 AM
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i have had a miss firing problem for a year now changed plugs coil packs leads and switched the injectors around and still miss fire in cyl 6. goes bak to them in january when i got time. but looks like they gonna have to take motor apart cause im pissed off
