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Old 09-10-2011, 09:32 PM   #1
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Default What is this vacuum hose and where can I find one?



I was greeted this morning with a P0171 code. I now know why my long term fuel trims have been so high, today they were pegged and the STFT was all over the place. I hope this explains why I have so much KR, I suspect the engine has been running lean because of the unmetered air.
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Old 09-10-2011, 09:37 PM   #2
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Pick up generic vacuum lines and replace the problem area.
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Old 09-12-2011, 08:11 AM   #3
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That is the evap purge valve to TB hose. I find a small length of 3/8" line, then an adapter from 3/8 to ...uh something smaller works well and then use that smaller hose size to connect to the evap purge valve.
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Old 09-12-2011, 09:30 AM   #4
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Got it. I replaced all the vacuum hoses that I could see while I was in there, they were all rotting and about to fall apart.
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Old 09-12-2011, 09:39 AM   #5
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Common problem.
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Old 09-12-2011, 09:43 AM   #6
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The whole thing that got me started looking at vacuum hoses was a LTFT that'* pegged at 16. It'* down to about 12-13 now, but I still think that'* too high. Is there anything else I should check, or is this considered normal? Seems like the car is running lean.
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Old 09-12-2011, 09:55 AM   #7
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Double check all vacuum lines. It may also take a little time to relearn the fuel trims.
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