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  #31  
Old 01-26-2007, 06:25 AM
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svxistentialist svxistentialist is offline
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Quote:
Originally Posted by NikFu S.
I've been using the same station for over a year.
My tires rule.
I don't drive in traffic.
My neighbors are pretty cool. They brought me dinner yesterday.

I'm thinking either I just got a bad tank of gas or my maf is on it's way out for good. I just cleaned it a few months ago.
My idle has become very erratic on cold starts.
At least I am hoping it's my maf, since I intend to replace with with the Z32 soon.
Ofcourse I hope even more it was just bad gas. :S
Short runs and pre-warming by ticking over are very sore on petrol[gas].

You would have the option at home of buying an engine heater and having it come on for an hour before going to work. This would help a lot.

Naturally you will not have this option for the return trip.

If you have not replaced your coolant for a while, I can make a suggestion that may help. Replace the coolant with the correct grade and amount of good quality coolant for your ambient temperature. In addition, buy and add to the mix a bottle of what is commonly called Water Wetter. There are different manufacturer trade names for it. Chemically, it is called a surfactant. It creates a better surface contact between the liquid and the metal surfaces.

This has two good effects; it helps the coolant heat up more quickly, which you want; it helps the radiator dump heat from the engine faster, which you want in summer, but not in winter. To deal with the second effect, it is easy for you to blank off a percentage of your radiator with cardboard to reduce the supercooling effect of your outside air. If you have not already done this blanking off trick, you should consider it.

NB: 1)Take away the blanking sheet for warmer weather or longer trips.
2) If your radiator fans are coming on a lot, you have too much covered up.

Joe

No warranty with this advice; if you overheat your engine, it's your problem, I don't know you.
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  #32  
Old 01-26-2007, 02:10 PM
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Quote:
Originally Posted by huck369
Maybe you didn't plug the O2 sensors back in....

I have considered the O2 sensors, but wouldnt that show up when i checked codes?

The first time i removed the O2 sensors, i tried to remove them from the actual exhaust, before i realized i could just unplug them on the other end. I was twisting them with a wrench and prying on them. Is it possible they are installed wrong now? do they need to be orientated in a certain way, rotationaly i mean? thanks
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  #33  
Old 01-26-2007, 02:13 PM
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Also, could the O2 sensors be just sort of bad? Or do they just either work, or not work? I was thinking maybe they are worn out and need to be replaced, but not completely broken so that they are throwing codes. ??
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  #34  
Old 01-26-2007, 06:11 PM
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Quote:
Originally Posted by svxistentialist
Short runs and pre-warming by ticking over are very sore on petrol[gas].

You would have the option at home of buying an engine heater and having it come on for an hour before going to work. This would help a lot.

Naturally you will not have this option for the return trip.

If you have not replaced your coolant for a while, I can make a suggestion that may help. Replace the coolant with the correct grade and amount of good quality coolant for your ambient temperature. In addition, buy and add to the mix a bottle of what is commonly called Water Wetter. There are different manufacturer trade names for it. Chemically, it is called a surfactant. It creates a better surface contact between the liquid and the metal surfaces.

This has two good effects; it helps the coolant heat up more quickly, which you want; it helps the radiator dump heat from the engine faster, which you want in summer, but not in winter. To deal with the second effect, it is easy for you to blank off a percentage of your radiator with cardboard to reduce the supercooling effect of your outside air. If you have not already done this blanking off trick, you should consider it.

NB: 1)Take away the blanking sheet for warmer weather or longer trips.
2) If your radiator fans are coming on a lot, you have too much covered up.

Joe

No warranty with this advice; if you overheat your engine, it's your problem, I don't know you.
Whatever problems I was having with the idle are gone.

I also do have a block heater, and I use it occasionally. I could probably use it at work as well.
I'll look into the Water Wetter. I've seen it around.
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  #35  
Old 01-27-2007, 03:49 PM
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Good grief. I pulled 12.29 mpg this last tank. New low record just barely beating out last October's 12.42...
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Last edited by NikFu S.; 01-27-2007 at 03:52 PM.
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  #36  
Old 01-27-2007, 04:48 PM
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Are you sure there aren't any leaks?
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  #37  
Old 01-27-2007, 05:28 PM
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Quote:
Originally Posted by Crazy_pilot
Are you sure there aren't any leaks?
I don't smell any fuel and I sniff my engine twice a day.

Until spring hits or until something obvious breaks I'm chalking it up to cheap sub-zero grade fuel, ice, and a heavy foot. Can't seem to get enough of that midrange growl.
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  #38  
Old 01-27-2007, 05:40 PM
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Quote:
Originally Posted by NikFu S.
Good grief. I pulled 12.29 mpg this last tank. New low record just barely beating out last October's 12.42...

are you running on a stock ECU? Im getting 14.5 with stage 1 v1.4. but after reading this thread it seem right
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Rebuilt P/S pump info... http://www.subaru-svx.net/forum/showthread.php?t=50918

If your car wont start info... http://www.subaru-svx.net/forum/show...ighlight=click
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  #39  
Old 01-27-2007, 10:29 PM
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I have the stage1Version4. It's been installed for some time now.
It didn't appear to affect mileage over 1.5 years.

If I drop below 12 there is definitely something amiss.
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  #40  
Old 01-27-2007, 11:39 PM
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Have you tried replacing your oxygen sensors? I was doing some searching and i found a thread where someone replaced both of them and it cured their bad gas mileage and poor acceleration. I have a strong feeling that the 02 sensors are the cause of my problems.
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  #41  
Old 01-28-2007, 08:13 AM
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Quote:
Originally Posted by NikFu S.
I have the stage1Version4. It's been installed for some time now.
It didn't appear to affect mileage over 1.5 years.

If I drop below 12 there is definitely something amiss.

do they mix ethanol with gas up there like they do here? I noticed a drop in milage when I saw all of these "contains 10% ethanol" stickers on slapped fuel pumps.
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Rebuilt P/S pump info... http://www.subaru-svx.net/forum/showthread.php?t=50918

If your car wont start info... http://www.subaru-svx.net/forum/show...ighlight=click
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  #42  
Old 01-28-2007, 01:23 PM
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Quote:
Originally Posted by SomethingElse
do they mix ethanol with gas up there like they do here? I noticed a drop in milage when I saw all of these "contains 10% ethanol" stickers on slapped fuel pumps.
I don't know what they add, but they change the formula to help cold weather starting, which reduces mpgs. Early in the season when my mileage first dropped I noticed the car seemed to run a little differently probably due to the ecu adjusting to the fuel.
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