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  #1 (permalink)  
Old 26 Jan 2007, 02:47 pm
vkutsevich@gmail.com
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Default 1993 Prelude fuel economy problems

I started having this problem quite a while ago. Now, since it got cold
outside it became even worse. I am getting at least 30% drop in my MPG.
On average I got about 24 MPG during normal highway and city driving.
Now i get about 17 MPG.
Recently I did full maintance on it. I have changed timing belt, spark
plugs, wires etc. I have not noticed any changes in the fuel economy
before and after my car got repaired.
My check engine light is off. In the morning car starts normally.

What should I check? Please advise.
Thanks

1993 Prelude 4WS
2.3L engine
175K miles
manual

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  #2 (permalink)  
Old 26 Jan 2007, 03:05 pm
motsco_
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Default Re: 1993 Prelude fuel economy problems

vkutsevich@gmail.com wrote:
> I started having this problem quite a while ago. Now, since it got cold
> outside it became even worse. I am getting at least 30% drop in my MPG.
> On average I got about 24 MPG during normal highway and city driving.
> Now i get about 17 MPG.
> Recently I did full maintance on it. I have changed timing belt, spark
> plugs, wires etc. I have not noticed any changes in the fuel economy
> before and after my car got repaired.
> My check engine light is off. In the morning car starts normally.
>
> What should I check? Please advise.
> Thanks
>
> 1993 Prelude 4WS
> 2.3L engine
> 175K miles
> manual
>

=================================

If you're in Alaska, it might be normal. Are you warming it up according
to the owner's manual?

'Curly'
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  #3 (permalink)  
Old 26 Jan 2007, 05:45 pm
vkutsevich@gmail.com
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Posts: n/a
Default Re: 1993 Prelude fuel economy problems

I am in VA.
Every morning I warm up my car for about 2-3 min and then drive slowly
until engine reaches the normal temperature.




On Jan 26, 4:05 pm, motsco_ <mots...@interbaun.com> wrote:
> vkutsev...@gmail.com wrote:
> > I started having this problem quite a while ago. Now, since it got cold
> > outside it became even worse. I am getting at least 30% drop in my MPG.
> > On average I got about 24 MPG during normal highway and city driving.
> > Now i get about 17 MPG.
> > Recently I did full maintance on it. I have changed timing belt, spark
> > plugs, wires etc. I have not noticed any changes in the fuel economy
> > before and after my car got repaired.
> > My check engine light is off. In the morning car starts normally.

>
> > What should I check? Please advise.
> > Thanks

>
> > 1993 Prelude 4WS
> > 2.3L engine
> > 175K miles
> > manual=================================

>
> If you're in Alaska, it might be normal. Are you warming it up according
> to the owner's manual?
>
> 'Curly'- Hide quoted text -- Show quoted text -


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  #4 (permalink)  
Old 26 Jan 2007, 06:15 pm
Elle
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Posts: n/a
Default Re: 1993 Prelude fuel economy problems

Consider everything listed at
http://home.earthlink.net/~honda.lioness/id11.html

Take seriously the counsel to use OEM for certain parts.

I'd probably replace the PCV valve first.


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  #5 (permalink)  
Old 26 Jan 2007, 07:00 pm
Jim Yanik
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Posts: n/a
Default Re: 1993 Prelude fuel economy problems

vkutsevich@gmail.com wrote in
news:1169844462.939267.252720@l53g2000cwa.googlegr oups.com:

> I started having this problem quite a while ago. Now, since it got cold
> outside it became even worse. I am getting at least 30% drop in my MPG.
> On average I got about 24 MPG during normal highway and city driving.
> Now i get about 17 MPG.
> Recently I did full maintance on it. I have changed timing belt, spark
> plugs, wires etc.


Air filter?

> I have not noticed any changes in the fuel economy
> before and after my car got repaired.
> My check engine light is off. In the morning car starts normally.
>
> What should I check? Please advise.
> Thanks
>
> 1993 Prelude 4WS
> 2.3L engine
> 175K miles
> manual
>


Fuel mileage typically drops in winter temps. Northern gas stations change
their fuel mixtures in winter,too.

are you keeping your tires inflated properly?

you could also need a tranny fluid replacement.
Are you using the right engine oil grade? like a 5W30 if that's what's
called for for your model.

maybe a lazy O2 sensor? they can get "lazy" and not trigger a "check
engine" light.
They supposedly are only good for around 60-100K miles.
OEM sensors are best.



--
Jim Yanik
jyanik
at
kua.net
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  #6 (permalink)  
Old 29 Jan 2007, 09:58 am
vkutsevich@gmail.com
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Posts: n/a
Default Re: 1993 Prelude fuel economy problems

Thanks for the tips guys!




On Jan 26, 8:00 pm, Jim Yanik <jya...@abuse.gov> wrote:
> vkutsev...@gmail.com wrote innews:1169844462.939267.252720@l53g2000cwa.google groups.com:
>
> > I started having this problem quite a while ago. Now, since it got cold
> > outside it became even worse. I am getting at least 30% drop in my MPG.
> > On average I got about 24 MPG during normal highway and city driving.
> > Now i get about 17 MPG.
> > Recently I did full maintance on it. I have changed timing belt, spark
> > plugs, wires etc.Air filter?

>
> > I have not noticed any changes in the fuel economy
> > before and after my car got repaired.
> > My check engine light is off. In the morning car starts normally.

>
> > What should I check? Please advise.
> > Thanks

>
> > 1993 Prelude 4WS
> > 2.3L engine
> > 175K miles
> > manualFuel mileage typically drops in winter temps. Northern gas stations change

> their fuel mixtures in winter,too.
>
> are you keeping your tires inflated properly?
>
> you could also need a tranny fluid replacement.
> Are you using the right engine oil grade? like a 5W30 if that's what's
> called for for your model.
>
> maybe a lazy O2 sensor? they can get "lazy" and not trigger a "check
> engine" light.
> They supposedly are only good for around 60-100K miles.
> OEM sensors are best.
>
> --
> Jim Yanik
> jyanik
> at
> kua.net


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