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mikepui

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Everything posted by mikepui

  1. I had a similar problem with 2009 Cayenne S. Durametric shows code P1023 & P1026. Had fault code erased but fault code comes back after test driving again. Changed both fuel pumps, fuel filter , pressure regulator & all spark plugs but didn't help. Long cranking starts & erratic idle & Engine misfire on kickdown. Will Order ignition coil & vent valve / line & hoping would solve the problem.
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