any recent maintenance; or do you have maintenance due/past due other than what you've identified?
Quick hits:
* IAC replace/clean
* Fuel Filter
* Air filter
* MAF Dirty
* Vacuum leak/s
* PCV valve/line
those codes surely aren't good and can exacerbate any condition as the PCM tries to compensate.
Nicely done!
Q: have you noticed any change in oil pressure; deduce you have a gauge?
Q1: Do you alternate when you change filters now, or both at once and an extended periodicity?
Last, have you ever considered adding magnets to the bottom of your filters?
Original owner '97 Eddie Bauer 5.4L 4X4:
*I ran the OEM Goodyears (P265/70R17) until nearly 76,000 miles.
*second set was Michelin LTX M/S to 142,000 miles (best rated/ride quality at the time based on Tire Rack). Independent dealer w/military discount.
*third set was Michelin LTX M/S2 (top pic)...
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