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03-09-2004, 03:54 PM
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#1 | |
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AF Newbie
Join Date: Mar 2004
Location: El Paso, Texas
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DTC P0171, Need Help.
After resolving several issues on my 97, DTC P0171 seems to stay alive. Have reset SES light, but code comes back to haunt me, again. Please, does anyone have some troubleshooting input to correct this code? I have resorted to blacking out SES light with some electrical tape for the moment.
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03-09-2004, 04:08 PM
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#2 | |
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AF Regular
 
Join Date: Nov 2003
Location: Canal Winchester, Ohio
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Not much I can do to help you out but I can tell what my 97 FSM says about PO171. Its a emmissions related code for Fuel Trim Lean Bank 1. It will illuminate the MIL after it fails 2 times. Sorry I couldnt help more.
BKVic |
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03-09-2004, 05:29 PM
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#3 | |
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AF Newbie
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Re: DTC P0171, Need Help.
That is the same descritpion I had, but no other sensor/code comes up, and what I saw through scanner came up empty. I took a look at the FPR, it's clean. Cleaned MAF housing thouroughly, but I read that disarming the sensor itself and cleaning it may help. Has new sparks and wires, but I don't think this is the area of of interest of this particular DTC.
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03-09-2004, 11:46 PM
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#4 | ||
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AF Enthusiast
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Re: DTC P0171, Need Help.
Quote:
__________________
Quality isn't expensive, it's priceless. |
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03-10-2004, 12:26 PM
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#5 | |
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AF Newbie
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Re: DTC P0171, Need Help.
Not to my knowledge. I don't have the scanner with me, but last time I used it all O2 sensors read OK. Should I look at the specific readings on them? Are there 4 of them, 2 per bank?
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03-10-2004, 02:37 PM
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#6 | |
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AF Enthusiast
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Re: DTC P0171, Need Help.
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03-10-2004, 02:39 PM
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#7 | |
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Re: DTC P0171, Need Help.
i know it's ford but the codes should be the same for OBD-II
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03-10-2004, 06:34 PM
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#8 | |
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AF Newbie
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Re: DTC P0171, Need Help.
What I found after visiting and reading my particular DTC in the above site, was that I have a broken vacuum elbow at the PCV valve. I will replace ASAP and see what happens. Thanks.
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03-21-2004, 12:39 AM
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#9 | |
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AF Newbie
Join Date: Mar 2004
Location: detroit, Michigan
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Re: DTC P0171, Need Help.
Codes are the same for all Manufacturers under P1000. I this case it means "System Too Lean (Bank 1) " Hegos are working fine. You have a A/F ratio problem. Codes can be found on http://www.actron.com/code_lookup/index.php
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03-22-2004, 07:44 PM
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#10 | |
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Re: DTC P0171, Need Help.
Thanks. Actually, I looked further down the line, and found the other elbow broken as well. I will take it this week to the scan tool, and read O2 sensors again.
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