I recently took my 2006 ford expedition in for repair. Had the spark plugs replaced. I got it back, and now the engine light is coming on. The error codes are po420 and po430. The engine light has

Asked by Nov 01, 2013 at 05:04 PM about the 2006 Ford Expedition Eddie Bauer 4WD

Question type: Maintenance & Repair

Never come on until I got it out of the shop.
?The repair shop was a Ford service
department. What should I do?

4 Answers

2,235

take it back to the dealer ask what the hell is going on

232,265

John is right on. Those are O2 sensor codes, they probably forgot to hook up a wiring harness connector that they had to remove while accessing the plugs.

Thank you I am taking it back monday I Will let u know how it goes

4,995

You have the right answer from Tom, above.

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