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P0171 & P0174 06 ford five hundred

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Old Jan 16, 2013 | 09:01 PM
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P0171 & P0174 06 ford five hundred

Just looking for some ideas. Searching the web wasn't as clear as I thought it'd be. I took it in to have the throttle body cleaned because of a carbon build up. We got a paper in the mail about a recall or a TSB I can't remember. It would cause the throttle to stick sometimes. Well now a week or two later it shoots those codes :\ I heard clean the MAF? What to do?
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Old Jan 17, 2013 | 07:48 AM
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Any help this morning ?
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Old Jan 17, 2013 | 12:34 PM
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Lean codes both banks. Throttle body was just cleaned. Check and see if there is a leak or something left loose. If you don't see anything, take it back to the dealer that cleaned it.
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Old Jan 17, 2013 | 01:13 PM
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I don't wanna get charged haha
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Old Jan 17, 2013 | 01:30 PM
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Why would you. Did they clean the throttle body? Light wasn't on when you brought it in. Unless I'm mistaken about them cleaning it.
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Old Jan 17, 2013 | 02:06 PM
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The light wasn't on till a week or maybe two after they had it cleaned.
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Old Jan 17, 2013 | 02:11 PM
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Check for anything that came loose between the MAF and the TB. If nothing found, just clear it. Possibly disconnect the battery for a while, ground the positive cable when disconnected, and try it out. That should clear all learned memory and relearn itself.
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Old Jan 17, 2013 | 02:23 PM
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So it'd be better to do the battery cable & ground it than just use an obd2 tester to clear it ?
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Old Jan 17, 2013 | 02:26 PM
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Originally Posted by SilverSkoundrel
So it'd be better to do the battery cable & ground it than just use an obd2 tester to clear it ?
I'm thinking that the learned idle from before the TB cleaning might have it acting up. If you disconnect and ground the positive cable, it should erase all learned (not permanent) data. Worth a shot. If it comes back on after, I would go further into it then.
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Old Jan 17, 2013 | 02:56 PM
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Ok sounds good, thanks al!
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Old Jan 17, 2013 | 09:05 PM
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Well I un hooked the positive battery cable and stuck it to the negative terminal for 15-20 minutes. Code was off for probably 30-45 minutes. :\
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Old Feb 17, 2013 | 10:37 AM
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update, we changed out the intake manifold gaskets and so far so good. better mileage and no engine code
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Old Feb 17, 2013 | 11:12 AM
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