Author Topic: cold weather question  (Read 1987 times)

Offline NERF 69

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cold weather question
« on: 12 February 2012, 16:44 »
Recently ive been doing less mpg than i was last summer and the only thing that's changed is the cold weather. Could this be the cause and is anyone else having any similar trouble?

Thanks


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Offline Khare

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Re: cold weather question
« Reply #1 on: 12 February 2012, 16:59 »
Recently ive been doing less mpg than i was last summer and the only thing that's changed is the cold weather. Could this be the cause and is anyone else having any similar trouble?

Thanks

It's normal to use more fuel in winter. Cold air = more oxygen = more fuel to keep the air:fuel ratio.

Offline NERF 69

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Re: cold weather question
« Reply #2 on: 12 February 2012, 17:29 »
I thought so. Im only asking because its dropped down to about 26mpg whereas in the summer i was getting around 36mpg i thought it was a big drop


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Offline clancy

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Re: cold weather question
« Reply #3 on: 12 February 2012, 17:30 »
does seem a big drop, i get 35 odd mpg at the moment
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Offline Khare

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Re: cold weather question
« Reply #4 on: 12 February 2012, 17:34 »
I thought so. Im only asking because its dropped down to about 26mpg whereas in the summer i was getting around 36mpg i thought it was a big drop

It'll drop down but not by THAT much. You've certainly got problems somewhere. Try a new coolant temp sensor.

Offline NERF 69

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Re: cold weather question
« Reply #5 on: 12 February 2012, 17:39 »
I thought so. Im only asking because its dropped down to about 26mpg whereas in the summer i was getting around 36mpg i thought it was a big drop


It'll drop down but not by THAT much. You've certainly got problems somewhere. Try a new coolant temp sensor.

will try that thanks. I can tell any difference in performance at all so i wouldn't have thought anything major. Am i right in thinking this?


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Offline clancy

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Re: cold weather question
« Reply #6 on: 12 February 2012, 17:42 »
possibly, could be a number of things. faulty sensor, something clogged up etc, exhaust doesnt leak does it ? that can make a surprising drop
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Offline NERF 69

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Re: cold weather question
« Reply #7 on: 12 February 2012, 17:44 »
possibly, could be a number of things. faulty sensor, something clogged up etc, exhaust doesnt leak does it ? that can make a surprising drop

yes it does. It keeps coming loose and falling off between the cat and middle box


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Offline Khare

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Re: cold weather question
« Reply #8 on: 12 February 2012, 17:54 »
Exhaust will only affect MPG if the leak is BEFORE the lambda sensor, not after.

Try coolant temp sensor as it's a common issue. It runs with the "cold" map, so it still drives fine without you realizing anything.

Offline NERF 69

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Re: cold weather question
« Reply #9 on: 12 February 2012, 18:32 »
Exhaust will only affect MPG if the leak is BEFORE the lambda sensor, not after.

Try coolant temp sensor as it's a common issue. It runs with the "cold" map, so it still drives fine without you realizing anything.


will the temp gauge still read fine on the dashboard?


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