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I have codes P0171, P0191 and P0505

Tiny
BUBBAS29
  • MEMBER
  • 2006 FORD E-SERIES VAN
  • 73,000 MILES
06 ford e350 6.8. The van kicked codes p0171, p0191 and p0505. Did smoke test and no leaks. Change fuel rail pressure sensor and fuel pump control module. Nothing has changed. The van dies on slow turns and idles rough sometimes.
Saturday, October 15th, 2011 AT 4:29 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
The 191 deals with fuel pressure sensor circuit. 171 is bank 1 is too lean. 505 is the iac. The iac could be allowing too much air to enter the engine. However, check fuel pressure to see if it is weak.
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Sunday, October 16th, 2011 AT 12:38 AM

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