4 Cylinder NA and Turbo This section is for questions pertaining to stock or modified 4 cylinders, including the performance 2.3L applications

need to improve my mpg

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Old Sep 1, 2009 | 01:39 AM
  #1  
Juggalo351's Avatar
Juggalo351
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From: Kannapolis, NC
Default need to improve my mpg

ok i drive a 93 lx, 2.3 5 speed. problem is ive never gotten any good mpg on it, what should i replace or do to improve it? already taken the air silencer out and did a tuneup, getting my front end fixed and aligned soon so that should help a bit. anyone got any ideas? dont need 40 lol, but 22-30 would be better than what it is now. thanx for any help guys
Old Sep 1, 2009 | 10:39 AM
  #2  
2011Black5.0's Avatar
2011Black5.0
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make sure tire pressure is correct and clean/change your air filter if you havent already
Old Sep 2, 2009 | 03:15 PM
  #3  
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ExtrmZ
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check the stickies at the top of the page. sleeper did a huge write-up on improving mpgs.

very good tips
Old Sep 3, 2009 | 12:43 PM
  #4  
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From: california/colorado
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i got the same problem on my 93 2.3l,,, its gets ****ly gas mileage i need sum help 2
Old Sep 4, 2009 | 06:59 PM
  #5  
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Hey

What did you purchase for the Tune up? Did you replace the PCV, O2 sensor, fuel filter and such?
Old Sep 4, 2009 | 10:08 PM
  #6  
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Juggalo351
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plugs wires air filter and oil change. so o2 sensor, fuel filter, and the pcv. about the pcv, the ones at the store have a double fitting, and i know mines wrong. question is where does that second line go?
Old Sep 5, 2009 | 12:38 AM
  #7  
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dreamer1uk
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Hi,

The bottom of the PCV valve connects to the bigger vacuum hose that heads to the block. For the other two vacuum lines, one heads to the upper intake manifold and the last vacuum hose runs along the firewall to a t-fitting that heads to the vacuum ball in the passenger side fender area.

Hopefully this makes sense.
Old Sep 5, 2009 | 05:56 PM
  #8  
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Juggalo351
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ok well mine is def wrong then. guess whoever did it before was an idiot. its got a vacuum line with a little plastic elbow in it that runs only to the intake. oh this comes from the top of the valve cover, ill try to get a pic in a bit
Old Sep 10, 2009 | 09:13 AM
  #9  
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toplessLx
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From: north carolina
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yeh my pcv is the same way. no valve just to lines with an elbow. now im a general mechanic and i knew that looked wierd but i figured it couldve been somethin ford did so i aint bothered it
Old Sep 10, 2009 | 02:57 PM
  #10  
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Juggalo351
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From: Kannapolis, NC
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figured it out a bit, the pcv is behind the intake under the egr. replaced that and noticed it hadnt been connected to the big line running from the block, seems like it fixed my idle lol. as for the hose on top, dunno exactly what its for but im cleaning it up a bit with just a solid hose, mine seems a bit loose like it would cause a vacuum leak
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