Question about Ford Cars & Trucks
FUEL ECONOMY IS DOWN
If you ran the car on a scanner, and that's the answer that Coded, then replace the MAP. If you are guessing, then get a free scan at one of the big autoparts chains.
Resubmit details about the Year, Model, and engine size. There are some engines with intake runners, some motors with "Cam Phasers" , and various features for different engines.
You should check tire pressure and jack up the wheels of the vehicle to see if brakes are dragging. Clean oil, filter, and air filter can help.
Remember to access mileage under equal conditions. Same roads, same traffic, same weather. Be sure that gas was not diluted with E85 which will not give you the same mileage.
Posted on Apr 17, 2014
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Posted on Jan 02, 2017
I suggest download this specific Factory Service Manual: Mitsubishi FSM Engine 4D56-25-diesel
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Posted on Feb 13, 2012
SOURCE: trouble shoot low fuel economy
try any of the following::::new spark plugs, fuel injecter clean(if it has any), using cruise control on long flat roads,new fuel filter, new after market air filter, pcv valve helps a little.. very easy to change to.......thats all i can think of..
Posted on Jul 20, 2010
Testimonial: "I'll check plug gaps (?) and double check the dates of my fuel filter and air filter. I keep the box tab with the date and mileage on them. Could an EGR also be a problem. The engine has no signs if trouble but just seems not 100%. Thanks for the help, John"
Tips for a great answer:
Feb 25, 2014 | 2003 GMC Sonoma
The Manifold Absolute Pressure (MAP) sensor
responds to changes in the intake manifold pressure (vacuum). 5 Volts is
supplied to the sensor from the PCM (powertrain control module). Inside the MAP sensor is a
resistor that moves in relation to manifold pressure. The resistor varies the
voltage between about 1 volt to 4.5 volts (depending on engine load)
and that voltage signal is returned to the PCM to indicate manifold pressure
(vacuum). This signal is essential for the PCM to determine fuel delivery. A
P0107 DTC is set when the PCM sees that the MAP signal voltage is less than .25
volts which is too low.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Potential Symptoms
The causes of a low MAP sensor signal
circuit (P0107) could be
any of the following:
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