The check engine light comes on every couple weeks, after cleared, with this code PO411. Runs fine. What is the most likely cause? I find it hard to believe that its the elec. air pump. Wouldn't it either work or not? Any ideas would be helpful. Thanks
i had this problem too...it ended up being the electric air pump and one relay, funny thing is that 2 days after i got it fixed, the light came back on even after ford told me exactly what was wrong with it...honestly that code sucks man still can't figure out today whats tripping that light :headscratch: but good luck
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