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Have you changed where you buy gasoline or has their formulation changed? A change from pure gasoline to 10% ethanol will negatively affect your gas mileage, as ethanol has less energy than gasoline.
One prime suspect on poor fuel mileage is the coolant temperature sensor (CTS) located between the intake runners on cylinders 2 and 3 (not the one for the gauge at the end of the head). If the ECU is fed information that the coolant/engine is cold, it will operate the injectors with more fuel (higher duty cycle), enriching the mixture to help keep the cold engine running. You can measure the resistance of the sensor at various temperatures and see if it's in spec - do a search here for reasonable values.
posted by 108.71.134...
Posts in this Thread:
- Fuel consumption digits on dash, Emil \'92 900, Sun, 17 Nov 2013 12:37:16
- Re: Fuel consumption digits on dash, BobS, Mon, 18 Nov 2013 14:15:34
- Not a P0101, sam96CS , Mon, 18 Nov 2013 11:44:13
- Re: Fuel consumption digits on dash, Simon S, Mon, 18 Nov 2013 07:54:06
- Re: Fuel consumption digits on dash, Bill Homer , Mon, 18 Nov 2013 05:42:59 <-- Viewing This Message
- Re: Fuel consumption digits on dash, T. Christopher, Mon, 18 Nov 2013 05:11:06
- Re: Fuel consumption digits on dash, TML , Sun, 17 Nov 2013 18:38:23
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