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tune up Q's
Posted 24 March 2005 - 06:36 PM
Posted 24 March 2005 - 07:06 PM
are you worried about your gas mileage?
how many miles do you have?
02 Sensor is probably a good item to address.
Posted 24 March 2005 - 07:08 PM
Posted 24 March 2005 - 09:35 PM
Posted 25 March 2005 - 01:06 AM
How fast do you normally drive? That makes a difference. Also, are your tires fully inflated?
I got a boost from ~23mpg to ~27mpg by changing my O2 sensor, but I have a SPFI GL, so that actually matters to it.
One thing that might help some - since you're running an aftermarket coil, you can gap the plugs a bit wider. On mine, stock is 0.044" and most people seem to suggest 0.050" works better with an aftermarket coil. I need to get around to regapping mine & see if it affects anything.
Posted 26 March 2005 - 03:16 PM
Posted 26 March 2005 - 03:47 PM
There were many carbed cars with 02 senors
The carb and the mixture is controlled with duty solenoids
that adjust the air bled into the emulsion tubes
the 87 2 wd model will have one, 4wd do not
It still could have an 02 as no drivetrain info was given
Posted 26 March 2005 - 10:21 PM
Russ is correct you do not have an 02 sensor nor do you have a ECU (Emission Control Unit) a.k.a. engine computer
You are at the mercy of the Subaru emission engineers, who tried desperately to make your engine pass US emissions
without the aid of any electronic control (thermo vacuum devices had to "make due")
There is one light at the end of this tunnel that is not an on coming train.
His name is Kerry, he works inconjunction with CCR Inc.
If you really want to fix this, email him - he is a true guru when it comes to this carb and it anomalies.
See this link for Rubuilders
Hope this helps
Posted 28 March 2005 - 07:50 AM
Posted 28 March 2005 - 08:00 AM
23 would be low for a 5spd, but i have had some automatic cars get that mileage, especially when going 70 down the freeway...
Posted 28 March 2005 - 11:29 AM
however, I would also recommend changing your gear oil if you haven't - I did mine and picked up 2-3 mpg - but mine was VERY dirty!! (city car)
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