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Bought a new 940T wagon! Needs a little help on MPG, Performance 900 1994

posted by  JB945t on  Tue May 20 05:30 CST 2008
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last visit: Fri Jul 13 15:56 CST 2012
[RELATED]

There are several possibilities for a rough idle, most of which should probably be done just for good measure.
1. A good tune-up, plugs,cap & rotor
2. Clean the throttle body and IAC
3. Check for vacuum leaks, hoses are cheap to replace and the intake manifold gasket is suspect at your mileage unless it was replaced at some point.
4. Pull the vacuum hose on the fuel press. reg. to check for wet fuel or strong fuel smell. Replace if you have either, fuel leaking through the daiphram will kill your MPG and cause rough running/hard starting.

Your turbo guage is working correctly, thats about where it will max out at stock boost.

Sounds like a great find, hope you enjoy it. I love my 93, it's just a baby as well with 133k on the clock. I'm averaging around 19 MPG with some performance upgrades on mine, the best I did before the mods was 23 and I averaged @ 21.
so it sounds like there is improvement that can be found in your MPG.






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