P0171, it's been mentioned many times before, but... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-28-2013, 07:33 AM   #11
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that would be tough for your average diy guy to find
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Old 08-29-2013, 12:19 AM   #12
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Absolutely, not the DIY guy (or gal) kinda stuff, but it really showed me that with just a basic meter like a VOM that can read hertz, that you're not going to get proper readings like you can with a good scanner!

I discovered something today, the gas line that connects at the injector feed weeps gas ever so lightly when played with. So I wonder by the way that it connects if air is being siphoned in after the throttle body (hence the high O2 level in the exhaust)? The o-ring must be worn, so for 20 bucks from Autozone I'm going to replace that, the connector and part of the gas line in the engine compartment, then I'll reconnect the MAF sensor and see where I'm at? I can only hope - I'll keep you posted.
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Old 01-16-2015, 03:16 PM   #13
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I got the code but i think i have an intake leak,very minor one...
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Old 01-16-2015, 10:50 PM   #14
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Then start your own thread instead of digging up one that'* 2 years old please.
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Old 01-17-2015, 09:35 AM   #15
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Gee sorry i didnt look at the dates... Just searched p0171
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Old 01-17-2015, 10:50 AM   #16
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The O RING is all that'* wrong with your leak you can pull it out with a pick tool its 3/8 dorman sells them in a pack you will find replacing the line more of a problem they are kind of heat shrunk from the factory
you squeeze the bottom white plastic retainer to remove it not the actual retainer
and that part should be replaced same time 3/8 again dorman pack part
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