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Excessive fuel use

(1999 Ford Contour)
in Phoenix, NY on May 19, 2010
car is getting about 10 mpg it got 30mpg when i bought it
scanner only shows dtc P1000 exhaust smells like car is running rich, it will stall at times on deaccelration, and transmission is shifting extremaly late
took it to a local transmission shop and they say trans is fine - need to look at engine systems
any ideas?
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Popular Answer
on May 19, 2010
trans shop is correct. you need a diag on the motor to find out what the problem is. by the way, p1000 is a code that says the computer was interupted while running a monitor.

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on January 21, 2013
Try Cleaning your Mass Air Flow Sensor,or replacing it.The MAF sensor can cause these same symptoms...And not even kick the MIL light on....
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