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| Mustang P0171 Code http://www.obd-codes.com/forums/viewtopic.php?f=1&t=552 |
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| Author: | 97mustang97 [ Mon May 01, 2006 8:57 pm ] |
| Post subject: | Mustang P0171 Code |
I have a Mustang 3.8 V6 and i just got a check engine light one. I took it to get a reading on it and it was P0171. Coudl anyone help me and tell me what to do because i do not want to pay beaucoup bucks to Ford dealer to get this fixed. Thank you |
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| Author: | jeff compton [ Wed May 03, 2006 2:22 pm ] |
| Post subject: | mustang |
might be as simple as cleanning the heating elements in the MAF, they tend to get dirty and throw the fuel curve out, especially if a K&N style air filter has been installed, can also be an intake leak, 02 sensor problem, low fuel pressure etc, how does it run, how much mileage on it? any work done to it recently? Jeff |
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| Author: | 97mustang97 [ Wed May 03, 2006 5:37 pm ] |
| Post subject: | Thank you for reply |
I have 100K on it... Just turned 100 k actually a week ago. First i had a P1171 or something like that, and it was the O2 Sensor that went bad. I replaced that, just receintly and 30 miles afterwards a new Check engine light came up, the P0171. First i thgouth that i did something wrong by replacing that O2 sensor but i dont think so. Now, i tested my car, it runs just fine...No power loss of what so ever...Sometimes, when i would turn it on, it would kinda studder, but when i put it in the gear and start driving, you can feel all the horse power... I do have a K&N filter in it and i just replaced it today to see if that would make a difference... I did put some cleaning oil in the tank and i am still running my car with that to see if that would clear everything maybe... Lets hope... Please any suggestions where i can save some money would be helpfull. Thank you |
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| Author: | jeff compton [ Thu May 04, 2006 9:01 am ] |
| Post subject: | mustang |
I'd suggest putting the factory air filter back in it temporarily and clean the MAF and then clear the codes and redrive it, if it's fine then that's proabaly all it is, Like I said K&N's don't work so well on some vehicles, filter's that are overoilled can really wreak havoc. good luck and keep me postted Jeff |
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