1993 Prelude fuel economy problems

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

vkutsevich@gmail.com - 26 Jan 2007 20:47 GMT

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

Reply to this Message

motsco_ - 26 Jan 2007 21:02 GMT

> 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.
[quoted text clipped - 12 lines]
> 175K miles
> manual

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

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

'Curly'

Reply to this Message

vkutsevich@gmail.com - 26 Jan 2007 23:45 GMT

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.

> vkutsev...@gmail.com wrote:
> > I started having this problem quite a while ago. Now, since it got cold
[quoted text clipped - 18 lines]
>
> 'Curly'- Hide quoted text -- Show quoted text -

Reply to this Message

Elle - 27 Jan 2007 00:15 GMT

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.

Reply to this Message

Jim Yanik - 27 Jan 2007 01:00 GMT

> 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.
[quoted text clipped - 7 lines]
> 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.

Signature

Jim Yanik
jyanik
at
kua.net

Reply to this Message

vkutsevich@gmail.com - 29 Jan 2007 15:58 GMT

Thanks for the tips guys!

> vkutsev...@gmail.com wrote innews:1169844462.939267.252720@l53g2000cwa.googlegroups.com:
>
[quoted text clipped - 34 lines]
> at
> kua.net

Reply to this Message