p0171 p0174 - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-17-2008
rdy4mud's Avatar
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p0171 p0174

so many of you know that i have been having problems with those codes on my truck. i was thinking it may be the maf due to the fact that if i unplug it the truck idles/runs normal yet when i plug it back in the truck will either stall or seriously studder, i was wondering if this may be a sign that the problem is my maf- Jay
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Old 03-17-2008
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have you cleaned it? do that the idler sensor and see if that helps.
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Old 03-17-2008
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yeah i cleaned it, wheres the idle sensor
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Old 03-17-2008
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on top of the trottle body. it has to bolts that hold it on.
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Old 03-17-2008
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lean bank one and two, you have a vacuum leak or a bad IAC
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Old 03-17-2008
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Mine was a vacuum leak. Had a hose off. Once it was plugged in , I reset the pcm and haven't had that problem again. Going on 6 months now.
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