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Today's topics:
* Nissan connect - 1 messages, 1 author
http://groups.google.com/group/alt.autos.nissan/t/c43544487a78e736?hl=en
* 1991 Nissan Sentra- reduced gas mileage- where to check? - 3 messages, 2
authors
http://groups.google.com/group/alt.autos.nissan/t/0b5d5a4effba048b?hl=en
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TOPIC: Nissan connect
http://groups.google.com/group/alt.autos.nissan/t/c43544487a78e736?hl=en
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== 1 of 1 ==
Date: Sun, Oct 30 2011 10:55 am
From: "Renger"
Hi there,
Who has the new navi connect software 2011-2012 on SD card available.
Please let me know.
Wishes Renger
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TOPIC: 1991 Nissan Sentra- reduced gas mileage- where to check?
http://groups.google.com/group/alt.autos.nissan/t/0b5d5a4effba048b?hl=en
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== 1 of 3 ==
Date: Sat, Nov 12 2011 9:19 am
From: robbie
the factory rating for my 1.6L 4 speed manual sentra claims 25 city
33 highway. I have always maintained over 30mpg when I check the
mileage between fillups. I generally do this using a full tank of gas
so as to get a better average. Now my mileage is under 25 and has been
as low as 22mpg. I have done a tuneup, installed a new O2 sensor,
checked the MAF sensor, but haven't found anything out of the
ordinary. I was wodering if I could have leaky injectors, despite the
fact that the car runs and idles fine. I have replaced an injector
about a year ago because it quit working entirely (kind of obvious
when you lose a cylinder's worth of power on a 4 cylinder engine!) but
the other 3 are original and have 160k miles on them. Any advice out
there for me? This is my daily driver for work (30 miles/day) and I
would love to have those mpgs back!
== 2 of 3 ==
Date: Sat, Nov 12 2011 11:32 am
From: John Henderson
robbie wrote:
> the factory rating for my 1.6L 4 speed manual sentra claims 25 city
> 33 highway. I have always maintained over 30mpg when I check the
> mileage between fillups. I generally do this using a full tank of gas
> so as to get a better average. Now my mileage is under 25 and has been
> as low as 22mpg. I have done a tuneup, installed a new O2 sensor,
> checked the MAF sensor, but haven't found anything out of the
> ordinary. I was wodering if I could have leaky injectors, despite the
> fact that the car runs and idles fine. I have replaced an injector
> about a year ago because it quit working entirely (kind of obvious
> when you lose a cylinder's worth of power on a 4 cylinder engine!) but
> the other 3 are original and have 160k miles on them. Any advice out
> there for me? This is my daily driver for work (30 miles/day) and I
> would love to have those mpgs back!
A few other things I can think of:
Air filter blocked by dirt
Tyre (tire) pressure low
Spark plugs or plug leads faulty
Thermostat over-cooling
A leaky injector might be inclined to cause hard starting
(overfueling the engine while stopped as it releases residual
fuel-line pressure).
John
== 3 of 3 ==
Date: Sat, Nov 12 2011 11:45 am
From: John Henderson
robbie wrote:
> I have replaced an injector about a year ago
You can get an idea whether all cylinders are running at approx
the same mixture ratio by examining the colour of the deposits on
the internal spark plug insulators.
John
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