Repeatedly Running On A Low Tank?

With the throttle body open further, the ECU is also injecting more gas.

The less restrictive filter allows more air to pass.

 

No. The ECU is closing the loop by providing the right amount of gas
for the volume of air to satisfy the O2 sensor(s). It doesn't care
*why* the air flow is what it is - i.e., what combination of throttle
body opening and air filter restriction caused it, only that it is what
it is.

Which is only a factor at WOT. For less than WOT conditions, total
restriction is throttle body plus filter. The total is all that
matters, not how it's proportioned between the two.

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')

 

Yes, I had forgotten that.

Perhaps it's the velocity of the air, but you'd think the vaves would
restrict that, too.

All I know is, after adding the CAI, the mileage went up!
Unlike our friend jim beam, I'm not wasting a lot of time figuring why, I
just know it worked!

 

Gee, I knew what it felt like before changing the oil, and after.
Based on what it felt like from one end of the driveway to the other, I
could tell right as soon as I shifted into reverse it was doing better,
since it didn't feel like the rear end was shaking off the car.

I would guess since I lived with it for a week, I would have a better idea
of the difference in the feel than you...

 

With a closed loop system (and ALL OBD2 systems run closed loop when
at operating temp and below roughly 75-80% throttle) the mass airflow
sensor or Manifold Absolute Pressure sensoe and the O2 sensors fine
tune the system so the throttle position sensor does NOT have the
final say on injection quantity. The ONLY time a restricted air filter
can affect mileage is if it is so plugged it cannot provide adequate
airflow for half throttle operation or if you are running over aprox
80% throttle setting.

Will a restricted (restrictive) air filter or intake affect power?
DSefinitely. Will it affect mileage? NOPE.

Now, a cold air intake (or fresh air intake)? It WILL affect power,
for sure, and CAN affect mileage as well. However any INCREASE in
mileage would be extremely small. If you use the extra power, you will
pay for it in mileage. The extra power comes from higher air density
(colder air) allowing more fuel to be burned.

 

Now, this was on a Tercel with a whopping 1.5L, 108 HP engine.

What I noticed was a better throttle response off the line (it certainly
didn't turn it into a fire-breating monster! But you could feel the
difference) and the increase in gas mileage.

 

What year? EFI or feedback carb?

On a feedback carb system it made a lot more difference.

 

My LPG fueled cars keep the fuel pump going ALL the time. Loaned a car to my
penniless son for sometime and he only put LPG in it. Ran out of fuel and
cooked the pump.

My Mitsubishi van broke a fule lead 150 km from a town. I didn't realize
fuel pump kept running and cooked another bloody pump.

Keep some fuel in it.

 

er, why would anyone leave the ignition in the "run" position after the
fuel's gone and the vehicle's stopped? because that's the only
condition under which you could theoretically "cook" a pump. /and/
that's assuming the engine computer doesn't turn the pump off for you,
which pretty much /any/ engine computer would do btw.

 

er, actually, the tercel has an output of 93hp, not 108.

bullshit.

 

sorry, not so. i have some filtration data - i just have to find it.
paper is better for the reasons stated.

 

you just spent your weekend arguing with people that know a lot better
than you, and this is all you have to say? time you went back to your
old schools and burned them down - they seriously failed you.

 

What is it with people (especially *YOU*) telling ME what I experienced
and didn't experience?!?!

Listen, BOZO, *I* had the fucking car, *I* put the intake in it, and *I*
was driving it! If I recall correctly, *YOU* were nowhere to be seen!

What a fucking moron.

 

'95 EFI.

Sold it for $1200 to buy my Supra. Of course, the week after I sold it gas
went up a dime (that was 2004...)

 

And you keep coming back and arguing with me, Dipweed.

I think *I* know better what my car did than you do.

I hate these 'experts' that think things can't work if *THEY* say so.

 

Who gives a ****?

 

you, evidently.

 

you're demonstrating that there's a world of difference between what
someone says on a newsgroup and reality.

bottom line, you're bullshitting, either on purpose or because you're
mistaken. technically of course, it's also possible that you could be
the new einstein with a new paradigm in combustion chemistry and
thermodynamics, but somehow, based on your contribution history and the
lack of documentation for your claim, i doubt that.

 

maybe that's part of your problem if you think i'm arguing with you.
you keep bullshitting, and i simply enjoy correcting your inevitable
mistakes!

what you think and what is real are not the same. like someone watching
a monochrome tv tube claiming that it shows full color, what you're
claiming is simply impossible.

no, you just want to bullshit. i took the trouble to look up some of
your posts on a.a.toyota. frankly, signal to noise ratio over there is
scary low, and you're one of the biggest reasons.

 

Was it not determined that the vehicle he's talking about was
carbureted, in which case the mileage could have been affected?

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')