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gas milage drop
98 ML320 has 220k miles, I have had a recent drop in milage from @20 to @12MPG. Seems to run fine - no loss of power or skipping. Rencently changed fuel pump. Any ideas? Thanks
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There are several keys to good fuel mileage.
O2 sensor is most important. Fuel pressure as well, controlled by fuel filter. Air mass sensor inputs are also critical. |
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