1G MAF

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Andrea - 22 Jun 2007 04:07 GMT

Hi,
can you explain the best way to clean the Eclipse 1G NT MAF? May it be
so dirty to reduce air intake?

Andrea

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Stewart DIBBS - 22 Jun 2007 12:25 GMT

> Can you explain the best way to clean the Eclipse 1G NT MAF? May it be so
> dirty to reduce air intake?

I'd just use compressed air to remove dust unless the MAF matrix is covered
in oil (which should not happen), in which case use an aerosol eg brake
cleaner.

It sounds like you have another problem, say, your air filter element is
dirty. A clogged filter will reduce air intake. Replace the filter.

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Stewart DIBBS
www.pixcl.com/lancerproject

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Andrea - 22 Jun 2007 13:31 GMT

Stewart DIBBS ha scritto:

>> Can you explain the best way to clean the Eclipse 1G NT MAF? May it be so
>> dirty to reduce air intake?
[quoted text clipped - 5 lines]
> It sounds like you have another problem, say, your air filter element is
> dirty. A clogged filter will reduce air intake. Replace the filter.

Yes, as you probably remember my car is LPG fueled, so it has a small
window on the air intake which opens in case of backfire: well, after it
opens and if the engine is warm enough, the performance increases. It
sounds illogical with a regular air intake, since this extra air is out
of MAF control.
Now I use a foam permanent filter, but I think it's junk because it
feels clogged just after 10000 miles: my wife's Palio has a K&N and it
runs like new after twice this mileage. So I'm evaluating between a K&N
or a Cosmo-racing in order to maximize air intake.

andrea

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Stewart DIBBS - 22 Jun 2007 23:34 GMT

>... so it has a small window on the air intake which opens in case of
>backfire

Fluid Dynamics 101 says that air flows through a system according to the
smallest aperture. Put another way, it does not matter if this window is
before or after the MAF, the MAF will register the flow as limited by that
window.

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Stewart DIBBS
www.pixcl.com/lancerproject

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Andrea - 23 Jun 2007 21:05 GMT

Stewart DIBBS ha scritto:

>> ... so it has a small window on the air intake which opens in case of
>> backfire
[quoted text clipped - 3 lines]
> before or after the MAF, the MAF will register the flow as limited by that
> window.

well, the windows *opens* the air intake pipe between MAF and engine, so
this extra air flow cannot be registered anyway: the MAF should register
a reduced air intake due to air filter restriction while this window
offers no resistance to the air.

today I cleaned the air filter. it's a Ramair (www.ramair-filters.com).
They tell that the servicing mileage is around 25000 but I think that
it's not really true. In 4 years I made around 10000, as told, but I
guess that it's enough to service it: cleaning liquid was as black as
tar and I'll probably have to spend a can of cleaner each year in the
future. Also K&N recommends yearly cleaning. Now the engine looks to run
smoother but I'll check better in the next days under sunny and moisty
summer afternoons.

andrea

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Andrea - 26 Jun 2007 21:31 GMT

Andrea ha scritto:

> Now the engine looks to run
> smoother but I'll check better in the next days under sunny and moisty
> summer afternoons.

Well, it occurred again. The car was running well, but sometimes I felt
like a misfiring in 1 or 2 pistons when running under 2500 rpm's. And
today at the traffic light, I started and then the usual bang of a
backfire occurred when I was in 1st gear, around 2500 rpm. In spite of
this, I started very fast and the car ran as well as before.

So I'm evaluating to check again the ignition coil, because the air
intake is ok, the engine is quite enjoyable, but those "steps" in low
gears are annoying.

I'm looking for spares but it's difficult to find a dealer available to
ship from USA to EU.

andrea

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