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P0300 code

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Old Jul 15, 2017 | 03:57 PM
  #1  
mattymoe's Avatar
mattymoe
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From: san diego
Default P0300 code

2004 model. I have this code brought it to autozone. I unplugged the maf sensor while car was off and plugged it back in and it ran fine for a little while, did the same once more and worked for another ten minutes. I cleaned it and now problem is consistant rough idle and miss fire. I dont think its the plugs or the coilpack because if they are bad then they are bad and wont fix themselves like that.what do you suggest i do next
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Old Jul 17, 2017 | 06:35 AM
  #2  
Atreyu'z 350's Avatar
Atreyu'z 350
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From: Pennsylvania
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Mileage? Mods?.. What did you use to clean the MAF sensor?.. I would still pull the plugs and check their condition regardless. If they're up in age/mileage one or more could be failing. Check for intake vacuum leaks as well. Do you hear your fuel pump 'prime' itself when you turn your key right before startup?..
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