Forum: 4.0 SOHC / 4.0 OHV Tech
04-12-2011, 01:12 PM
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Replies: 19
Views: 29,856
Re: System to Lean Bank 1 & 2
Hello All,
1998 ranger 4.0L XLT Supercap 4x4
Throwing CEL for P0171 and P0174
Things done:
-all O2 sensors 1 yr old
-S-Plugs only 6 months old
-Fuel filter 1.5 yrs old
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