92 civic vx 29mpg ??help? - Page 3 - Fuelly Forums

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Old 02-20-2012, 02:09 PM   #21
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Re: 92 civic vx 29mpg ??help?

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Originally Posted by Kendaddy126 View Post
I need to clean the EGR ports... not easy...
have you seen this?...http://www.gassavers.org/showthread....t=egr+cleaning
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Old 02-20-2012, 02:09 PM   #22
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well everyone here is the latest... I installed the new o2 sensor , all the fluids and put the tires up from 26psi to 42(max 44) and wamo milage went from 29 to 47mpg the last fill up (all highway). Im thrilled, I just replaced the fuel filter (which when i drained the gas was filthy) so hopefully it gets better. My rpms still seem high as they are running 3000 strong at 70 2600 at 65 but i could feel the lean burn going into effect at 65 so as long as im getting over 45 i guess i wont question the mpg gods. the speedo needs a sensor as its all over the board sometimes but the tach seems to register idle correctly so who knows .. Ill keep you informed as to my next fill up mpgs , thanks guys...
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Old 02-20-2012, 02:11 PM   #23
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Re: 92 civic vx 29mpg ??help?

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Originally Posted by amaterasu71 View Post
well everyone here is the latest... I installed the new o2 sensor , all the fluids and put the tires up from 26psi to 42(max 44) and wamo milage went from 29 to 47mpg the last fill up (all highway). Im thrilled, I just replaced the fuel filter (which when i drained the gas was filthy) so hopefully it gets better. My rpms still seem high as they are running 3000 strong at 70 2600 at 65 but i could feel the lean burn going into effect at 65 so as long as im getting over 45 i guess i wont question the mpg gods. the speedo needs a sensor as its all over the board sometimes but the tach seems to register idle correctly so who knows .. Ill keep you informed as to my next fill up mpgs , thanks guys...
oh yea the shift light still tells me to shift in 5th gear ??? strange?
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Old 02-20-2012, 05:15 PM   #24
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Re: 92 civic vx 29mpg ??help?

^You have a non-VX/CX transmission.

The 'feel' at 65mph with your stated 2600 RPM is the vtec engaging for more power/more fuel consumption.

The VX transmission has lean burn primarily from 1,500 rpm - 2,200/2,300 RPM or so.

This means, you would probably be getting another 5-10 mpg 'potentially' out of this car on the highway with the original transmission.
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