Question about 2006 Ford Mustang
I got codes, p0172 and p0174 (system too lean and rich). I got new spark plug and wires. I tried cleaning out the MAF sensor, but don't know if I have to replace it.
When these codes are tried together it usually means O2 sensors are going bad. I suggest you get a real scanner on it before you spend $$$$$
Posted on Jun 23, 2009
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Posted on Jan 02, 2017
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