2002 MAF or O2 sensor problem??
10-16-2008, 10:09 AM
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2002 MAF or O2 sensor problem??
Hi, I am new to the forum and glad I found it. Looks like a great place for useful info about my truck. I have a 2002 F-150 4.6L V8 that has a very rough idle. The engine came on and these are the codes that came up. The guy at Autozone said that he thinks it is the MAF sensor and that is what the printout that I got from them suggested. Does anyone think that is right or should I replace the O2 sensors and also the EGR valve? Thanks for any help, it is greatly appreciated!
P0171
P0174
P0405
P0171
P0174
P0405
