horrible mpg
i do have a heavy foot. but since i installed my intake and header I've have not been getting the same mpg as i was before i installed them any one else have this issue?
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any check engine lights? are your o2 sensors set up correctly?
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Originally Posted by 210of2200RS7
(Post 3972085)
i do have a heavy foot. but since i installed my intake and header I've have not been getting the same mpg as i was before i installed them any one else have this issue?
As an example. After I installed my motor mount i was testing it and stepping on it. I checked my MPG's and they were very low. |
^^ x2
Remove the battery, let it sit for 5 mins or so and it will reset the ECU. Your ECU has to configure to your new air/fuel ratio |
Originally Posted by DeAnzaJig
(Post 3972089)
any check engine lights? are your o2 sensors set up correctly?
no lights and the o2 sensors are set up correctly |
Originally Posted by fun173
(Post 3972097)
What MPG's are you getting. Did you remove the battery for installation? Removing the battery will reset the MPG'ometer and if you step on it after install it will be very low.
As an example. After I installed my motor mount i was testing it and stepping on it. I checked my MPG's and they were very low. |
You dont need to disconnect the battery to reset the mpg's. Just hold down the button used to cycle through your odo on the gauge cluster for a few seconds while you are on the mpg display, that will reset it to 0
Originally Posted by fun173
(Post 3972097)
What MPG's are you getting. Did you remove the battery for installation? Removing the battery will reset the MPG'ometer and if you step on it after install it will be very low.
As an example. After I installed my motor mount i was testing it and stepping on it. I checked my MPG's and they were very low. |
Originally Posted by scottobahn
(Post 3972363)
You dont need to disconnect the battery to reset the mpg's. Just hold down the button used to cycle through your odo on the gauge cluster for a few seconds while you are on the mpg display, that will reset it to 0
You are right, but that is not what he was saying. He said IF he disconnected the battery the MPG WOULD reset. Not "that is how you do it." |
haha my bad, I re-read that post....I'm a dee dee dee
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Originally Posted by scottobahn
(Post 3972401)
haha my bad, I re-read that post....I'm a dee dee dee
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I did not know you could re-set it by holding the button :redface:
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Originally Posted by Druidiron
(Post 3972397)
You are right, but that is not what he was saying. He said IF he disconnected the battery the MPG WOULD reset. Not "that is how you do it."
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I had it down to 16.8 after the GGP install :D
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i actually use my GPS to track my MPG
no matter what my screen says...i usually get 23-25 mpg on my GPS |
The avg mpg guage on the instrument cluster is exactly that. an AVERAGE of your miles per gallon. Resetting it/disconnecting the battery will remove the average, and you will need to start all over. seeing that it reads 25mpg avg. over the last 6 months will not be the same average over the last 6 days...
I was getting 25.2 average prior to my pulley install. I reset it the same day to see if it would go up or down with the install, but I wont be able to get an accurate reading for another few weeks... |
hmm i usually get 19.7-20.6.... but then again i dont do much highway driving only thing ive done is CAI the pulley & exhaust going in next week wonder whats gonna happen
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ok no one is answering the actual question or asking the correct question..
i also had this problem when i first got my manual went from 28-30 mpg to 23-25 first off what kind of intake and header did you install if its a cold air intake you will actually gain mpgs if you are "gunning it" due to the way they work... CAIs take cold air from away from the engine and uses it to allow for better combustion. theoretically this should increase fuel economy; however, Cold air intakes will produce more power, and will save gas if the engine operates only at Wide Open Throttle. However, under 90% of driving, the warmer Air Intakes are more efficient because the engine is throttled and under less than full load. therefore having a cold air intake will give you better hp and torque and gas mileage under wide open throttle and a warmer air intake or stock will allow for a decrease in hp and torque but better gas mileage under normal everyday driving sources: lots of research when i was having the same problem |
Lets do some MPG calcs... 1) Fill the tank, 2) Reset your trip OD, 3) Drive any amount (over 100 mi preferably), 4) Refill tank and note the amount of fuel in gals, 5) Divide the miles driven by the # of gals...we now have MPG, 6) Reset the trip OD for the next measurement.
I have 7k miles on a manual 2012. Prior to boosting I would get a measurement of 30-31 MPG and the average on the meter was around 29.5. Now that I'm boosted the meter has me at 30 but by my measurements I'm getting 26 (just today). This was my first tank through. I'll update on the next tank. |
Devanb,
A cold air intake creates more power because colder air is more dense. This means that for a given volume you can add more fuel, thus creating more power, by burning more fuel at once. That is why CAI = better economy is a farce. The only supposed gain in fuel efficiency is from the "less restrictive" setup, not from the cooler air. In reality though on most modern small engines they create a negligible amount of hp and have little to no effect on mileage. |
^^This
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