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olwen williams Posted on Jun 06, 2019
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Hi hubby got 2002 sportster starts fine and will run ok then starts to misfire under load could this be aproblem with the plugs.

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richardehrha

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  • Posted on Jun 06, 2019
richardehrha
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Could be plugs or coils

Testimonial: "thankyou will tell him .will start with plugs then om to coils."

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Nov 15, 2008

SOURCE: 1998 honda crv misfire code 0303and 0304

problem solved mechanic had wires on wrong thanks

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Anonymous

  • 29 Answers
  • Posted on Nov 16, 2008

SOURCE: 99 vitara misfire?

check for codes, p0300 is multiple cylinder misfire, p0301-p0304 is for cylinder 1 through 4, could be bad plug or coil, try switching and see if problem moves to different cylinder

66 chrgr

mike loshbough

  • 1011 Answers
  • Posted on Feb 19, 2009

SOURCE: engine misses when placed under load

replace the plug wires this will fix your secondary ignition breakdown. the egr code is due to a bad dpfe sensor which is for back pressure on egr valve.this will not cause misfire.

Anonymous

  • 80 Answers
  • Posted on May 06, 2009

SOURCE: 98 mitsubishi mirage misfire or fuel prob

change the fuel pump relay

Anonymous

  • 253 Answers
  • Posted on Jun 04, 2010

SOURCE: 2002 Ford Windstar p0300 skips and backfires under load

Just put a coil on a 2002 today. Coils fail a lot with no codes given

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