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Daryl, Shop Owner, Master Mechanic
Category: Ford
Satisfied Customers: 12549
Experience:  28 years experience, Master Mechanic
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2003 Ford Escape: im working..trouble code po430.

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I'm working on a 2003 Ford Escape. I have trouble code po430. What could cause this and how do I fix it.
That code is for the catalytic converters efficiency is low on bank one, that typically means that the catalytic converter is bad on bank one.
Customer: replied 7 years ago.
Ok, how do I tell the difference between bank 1 and 2

Bank one is where the #1 spark plug is, pic below.




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