.:HSTuners::::Hondas Wanted:: |
08-27-2004, 01:27 AM
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#1 |
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Registered User
Join Date: May 2002
Location: IL
Age: 39
Posts: 1,813
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Causes for poor gas mileage?
Well I bought another car to add to my fleet, but it's getting a little less fuel economy than I expected. (Its a 93 celica GT)
I'm trying to think of all possible causes for bad gas mileage, here's what I have so far: dirty air filter clogged pcv valve a lead foot not a very good list, i know, thats why I'm asking for input. The last item there I'm working on, I'm just so used to putting foot to floor after driving that escort that its hard to change. and also I've heard that a cold sir intake could help fuel efficiency by a small bit. True or no? Sounds like BS to me, more air, more fuel, you know? |
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08-27-2004, 01:58 AM
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#2 |
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Best...mod...ever
Join Date: Sep 2001
Location: At the end of the longest line
Age: 42
Posts: 7,451
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I'd add bad O2 sensors or possibly bad vacuum to the regulator. Man...I hate chasing down problems like that.
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1984 1/2 Mustang GT350 #842, Faster than you...nuff said Anna Fan Club President/Dictator Someday, in the event that mankind actually figures out what it is that this world actually revoles around, thousands of people are going to be shocked and perplexed that it was not them. Sometimes this includes me. "If you want a vision of the future, imagine a boot stamping on a human face - forever." - George Orwell Welcome to the new Amerika |
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08-27-2004, 03:09 AM
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#3 |
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Posts: n/a
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Diesel engine?
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08-27-2004, 01:15 PM
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#4 |
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elyK
Join Date: Mar 2002
Location: New Braunfels, TX
Age: 38
Posts: 3,390
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how big's the engine?
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IGNORE THE FACTS EXPLORE THE TRUTH |
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08-27-2004, 01:22 PM
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#5 |
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Registered User
Join Date: Aug 2002
Location: The Bay which holds no water, Palm Bay, Fl
Age: 38
Posts: 1,688
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air filter
spark plugs spark plug wires dist. cap dist. rotor
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A very good quote : " I have many vices in my life, and those keep me from perfection, and not being perfect makes me a human being with morals" -Anonymous |
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08-27-2004, 01:51 PM
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#6 |
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Best...mod...ever
Join Date: Sep 2001
Location: At the end of the longest line
Age: 42
Posts: 7,451
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Just remember...what won't kill you eats gas.
__________________
1984 1/2 Mustang GT350 #842, Faster than you...nuff said Anna Fan Club President/Dictator Someday, in the event that mankind actually figures out what it is that this world actually revoles around, thousands of people are going to be shocked and perplexed that it was not them. Sometimes this includes me. "If you want a vision of the future, imagine a boot stamping on a human face - forever." - George Orwell Welcome to the new Amerika |
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08-27-2004, 06:40 PM
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#7 | |||
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Registered User
Join Date: Mar 2002
Location: Northwest
Age: 38
Posts: 3,993
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man this 300lb kid was in my car along with a bunch of medium sized girls and the poor thing burned more gas:o
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08-27-2004, 10:06 PM
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#8 |
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Registered User
Join Date: May 2002
Location: IL
Age: 39
Posts: 1,813
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its a 2.2, and no paul, its not a diesel engine. However I was looking at some diesel vw's just for the efficiency. hell, half the time diesel fuel is cheaper than regular !
Yeah, good call on the o2 sensor. its got two, so double the chance for one to be bad. and by bad vacuum to regulator, do you mean fuel pressure regulator? and any comments on a cai helping fuel economy? |
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08-27-2004, 10:29 PM
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#9 |
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Thought Police
Join Date: Aug 2001
Location: orlando florida
Age: 40
Posts: 9,662
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what mpg are you getting?
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Black Vtec Prelude-h22a power'd  Many dreams come true, and some have silver linings. I live for my dreams and a pocket full of gold. |
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08-28-2004, 03:17 AM
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#10 | |
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Best...mod...ever
Join Date: Sep 2001
Location: At the end of the longest line
Age: 42
Posts: 7,451
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Quote:
Yeah. With a vacuum sensitive regulator, as engine rpms go up, vacuum goes down. As vacuum goes down, it opens up the regulator and allows more gas. If the vacuum line to the fuel pressure regulator cracks or leaks or whatever, less vacuum gets to the regulator and it thinks engine rpms have been increased and will add more fuel. A brilliant design, huh?
__________________
1984 1/2 Mustang GT350 #842, Faster than you...nuff said Anna Fan Club President/Dictator Someday, in the event that mankind actually figures out what it is that this world actually revoles around, thousands of people are going to be shocked and perplexed that it was not them. Sometimes this includes me. "If you want a vision of the future, imagine a boot stamping on a human face - forever." - George Orwell Welcome to the new Amerika |
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08-29-2004, 02:29 PM
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#11 |
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Registered User
Join Date: May 2002
Location: IL
Age: 39
Posts: 1,813
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well i just filled up again, and i guess it isnt as bad as i thought. this last time i got 25.8 mpg. I guess it just seemed low, but its really not considering:
its a bigger engine than anything else I am comparing it to (the 1.9 in the escort, and the 1.6 in the civic) the fuel meter is physically bigger (this would allow for a more precise meter movement, making me THINK that I'm burning more gas. in reality, its just more accurate.) air filter is hella dirty gas is damn expensive I don't always keep good track of my mileage, i just get an average feeling of how well im doing, so i really shouldnt be bitching. It seemed out of whack, but i didnt consider everything. |
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