7 MPG city 8 highway!!

1735 Views 7 Replies 5 Participants Last post by  TRCM
I get 7.0 mpg city, 8.0-8.3 highway!! No matter how i drive( heavy foot on gas pedal or light foot) i am getting almost the same MPG!!!! Ive changed spark plugs! What other things should i check!?? EGR and Oxygen sensor could be the issue?? How can i know if the oxygen sensor needs changing if EGR needs changing?? Wouldnt o2 sensor work bad because EGR is bad?? Please help:( thanx
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No man im not towing anything! Im calculating numbers by both hand and overhead! Dnt know what are the things affecting mpg? Airfilter , sparkplugs changed what else could be the issue? I think its more than one factor!
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