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Time for a change

V

volvo4life1

New member
Joined
Jun 13, 2010
Location
vancouver,BC
So I need to get better gas mileage if possible. right now Im getting 18mpg in the city on my 83 240 turbo. I have a couple of options i thought of, either swap to lh2.2 or some other fuel injection or get a newer 240. what kind of mpg could I get if I swapped to fuel injection? and what kind of mpg could I get from a na 240?
 
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Is there anyway I can increase that? right now I'm actually getting 12mpg with heavy foot :-( I'm just waiting for some parts to come in though
 
start turning some screws and lean it out till it bucks :p

but really, a tuneup, fuel filter change/etc, then slap that tool on kjet and lean it out. but with the heat, and a lean tune, you should be careful for TOO lean
 
12 mpg even with a "heavy foot" sounds a bit low. I believe that I get about 20 mpg no matter how I drive. Of course I really don't know because the odometer is broken and I haven't swapped in the working unit yet. Maybe the K-jet just needs a tweak.
 
Do you have a manual that shows the proper technique for setting the idle? It involves disconnecting the IAC circuit and getting a "mechanical" idle first. Then when the IAC gets plugged back in it should idle somewhere around 900 or so. Sounds like you have some troubleshooting to do. A wideband could also help with the diagnosis if there is a mixture issue.

You could also try cleaning out the IAC that you have. I have heard that they can stick. I have never had one go bad however.

This could also be useful...

http://www.k-jet.org/articles/information/k-jet-debugging-guide/

Good info there and it talks about high idle as well.
 
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volvo4life1 said:
It idles at 1600, I'm sure that's got to affect ur gas milage
Click to expand...

lower the idle then, i run no iac(just a bypass line around the throttlebody with a hoseclamp to reduce the flow), i have to blip the throttle to get it to start and idle for a few seconds, but it's a temp fix for a 1k idle
 
I agree with Olov. You should be able to get a mechanical idle first. There is a screw that allows for adjustment. You definitely need a manual of some sort to get that issue under control.
 
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