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Old May 27, 2010 | 08:39 AM
  #1  
ETXDIYER's Avatar
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Service Engine Soon Light

I recently experienced a P0171 code on my 2001 F150. I cleaned the Mass Air Flow sensor and it's now running fine now. I can't find anyone to turn off the Service Engine Soon light and would like to be able to do that. Help?
 
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Old May 27, 2010 | 09:08 AM
  #2  
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cixelsyd
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You need an ODB2 reader, many decent ones around, I paid about $40 for mine (or half the price your stealership charges to read the codes).

Here's an example:
U380 OBD 2 II EOBD OBD2 Fault Code Reader Scanner on eBay.ca (item 160438215525 end time 24-Jun-10 03:32:03 EDT)
 
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Old May 27, 2010 | 05:15 PM
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most codes will clear if you take the battery cable off. let the truck set 10 minutes, and reinstall the cable.
 
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Old May 28, 2010 | 08:54 AM
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If you really fixed the problem, the light will clear itself after a few drive cycles.
 
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Old May 28, 2010 | 11:10 AM
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Thanks for the suggestions. I undid the battery cables and the code cleared. The engine missed when I accelerated or went up a small incline. After cleaning the MAF sensor the miss disappered but the light stayed on. Now, I may not have fixed the problem to the satisfaction of the OBD, but I fixed it to my own satisfaction.
 
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