1990 Ford F350 Logo
Posted on Jan 24, 2009
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1999 Ford E250 van Rough running

My code anylizer says
PO171 = System too lean (Bank 1)
PO302 = Cylinder 2 misfire detected
PO304 = Cylinder 4 misfire detected
PO308 = Cylinder 8 Misfire detected

What can I try

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  • 3 more comments 
  • Anonymous Mar 12, 2014

    The service engine soon late has been for about 1month then a few days ago when I left work the car was running like always I had to stop fast and every since then the car runs very rough and even rougher when take off. and if stopped to long it feels like the car is bubbling. Stop at o"reilys to have codes done and the codes are cylinder 6 misfire detected but gives no possible cause available and the other code that comes up is Trouble code P0410 and No possible cause available. so I am trying to find out what the problem is so I can decide if I fix the car or not. Thank you

  • Anonymous Mar 15, 2014

    misfire cylinder 8

  • Anonymous Mar 21, 2014

    It is having a misfire in the number 8 cylinder, and I would like to change the number 8 cylinder however I am unsure of how I would do so myself.

  • Anonymous Mar 21, 2014

    I am wanting to change my number 8 cylinder due to the misfire issue, however I am unsure of how to do this can anyone help me with this.

  • Anonymous Mar 23, 2014

    misfire codes PO300,PO301,PO302,PO304,PO316 its a 2.0 spi sohc engine

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1 Answer

Dennis Mulford

Dennis Mulford

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  • Posted on Jan 24, 2009
Dennis Mulford
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I would like to know what these codes mean
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