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PLZ help my 93 civic is getting 10 MPG!!!!

Fuel Economy Discuss tips and tricks for better fuel ecomony.

PLZ help my 93 civic is getting 10 MPG!!!!

  #11  
Old 03-18-2014, 04:37 PM
HCF Member
Join Date: May 2013
Posts: 722
Default

do you have a EGR ???
 
  #12  
Old 06-03-2014, 09:17 AM
Junior Member
Join Date: Jun 2014
Posts: 1
Default

Could you have dripping injectors? This is caused by bad o-rings at the injectors. When it happend to me my gas mileage was 11 or 12 mpg.
 
  #13  
Old 11-06-2016, 03:31 PM
Junior Member
Join Date: Oct 2016
Posts: 6
Default 93 civic high idle when cold, poor fuel mileage

Take a look at the throttle body bore, where the throttle blade lives. If it's gunked up, it's time for a cleaning that is best done with tb removed. Check the seal between the tb and manifold for damage, or better yet just replace it. Inspect the throttle shaft that the throttle blade is mounted on for wear at each end where it pivots in the tb. For whatever reason it sounds like its running pig rich. Any black smoke while driving or accelerating?
 
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