Spark 4l 3v build engine p0430 plug plugs ford dates before runs code help great f150 misfiring randomly gap 2008 05 5.4l runs great code p0430 help! P0401 code: exhaust gas recirculation (egr) flow insufficient detected
P0401 Code: Exhaust Gas Recirculation (EGR) Flow Insufficient Detected
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05 5.4l Runs great Code P0430 Help! - Page 2 - Ford F150 Forum
P0401 Code: Exhaust Gas Recirculation (EGR) Flow Insufficient Detected