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850 Turbo poor mileage 850

posted by  Quinn388 on  Fri Nov 6 07:47 CST 2009
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last visit: Fri May 4 12:06 CST 2012
[RELATED]

Question. I have a 95 Volvo 850 Turbo the mileage is currently at 13.7 city, cant seem to get it back up to 18. I also only use 92 octane or higher.

Here's what I've done so far:

Complete tune up wires cap rotor plugs.
All flame trap and vacuum hoses are new.
New Timing Belt.
New intake gasket.
New Cam Position Sensor.
New hi flow intake filter.
New MagnaFlow Muffler.
New O2 sensors.
New temp sensor.
All new SAMCO turbo hoses.
New Thermostat.
Cleaned all the intake and throttle body.
New Throttle Position Sensor.
Cleaned ICV.
Cleaned the MAF Sensor.
Cleaned Injectors.
New Fuel Pressure Regulator.
New Purge Valve.


The only things I have not replaced are the actual MAF Sensor or the Charcoal Canister. Could these two things affect the fuel economy that bad?

Any help would be appreciated, thank you.

Also, the car idles a little rough when cold, but evens out when it warms up a little. Car also runs really strong when warm.

Thank you.






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