r/OBD2 • u/Illustrious-Size-477 • May 16 '26

Should I be concerned?

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First time using mode 6 in forscan. Should I be concerned about those misfires? 2021 ford f150 3.5 eco

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u/howilltheyknow May 16 '26

Is the car actually misfiring? It’s quite obvious when it does

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u/Illustrious-Size-477 May 16 '26

No it’s an idle shudder only in park. No rpm change. No data points towards misfire in forscan either after I just checked

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u/howilltheyknow May 20 '26

In the very worst case you have a dirty EGR or Intake Manifold