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Bad gas mileage???

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Old May 17, 2011 | 03:22 PM
  #21  
yellow_submarine's Avatar
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Okay my o2 sensor just arrived today and i'll put it on when i get home from work tonight or tom morning. Is there anyway any of you can point me out to a 1.8t front o2 sensor diy? How hard is this anyway? Thanks
 
Old May 18, 2011 | 01:40 AM
  #22  
Cristisor's Avatar
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I don't know how hard it is to switch it but you should clear the O2 codes after you make the swap and drive for a few tens of miles in order for the ECU to learn the new, correct, values before your MPG will drop.
 
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