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Old 11-01-2011, 05:07 PM   #1
MrMackey89 [OP] MrMackey89 is offline
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getting p0300 code

My truck started sputtering on acceleration lately, the engine sounded choppy kinda. I took my truck to a transmission shop because I thought the transmission was giving me problems. Turns out there was nothing wrong with the transmission. The guy told me my truck was giving me A P0300 code (Random Misfire/Multiple Cylinders). I changed the plugs and checks the coil packs, everything looked fine. I read online that it could be a leak in the exhaust manifold, but I have K&N Cold Air Intake. Anyone think the intake could be causing me to get this code. Or any other clues.
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Old 11-01-2011, 08:34 PM   #2
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Mass airflow sensor could be causing the problem. Will cause fuel system to go lean. Could be from over oiling the k&n filter or dirt passing thru filter and contaminating sensor. Try cleaning the sensor.
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Old 11-02-2011, 02:34 AM   #3
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maybe a dumb question but where is the MAF on the K&N intake? and what do i use to clean it?
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Old 11-02-2011, 09:06 PM   #4
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MAF is located in the intake tube. Remove it any spray the sensor end that goes into the tube with brake cleaner or electronics cleaner. Let it dry and reinstall.
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