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DF031 Engine Trouble Code

Meaning of DF031 engine trouble code is a kind of and when the check engine light comes DF031 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

DF031 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for DF031 code is occuring now you should check DF031 repair processes.
Now don't ask yourself; What should you do with DF031 code ?
The solution is here :

DF031 Possible Solution:

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

DF031 Code Meaning :

D	f	0	3	1
For Engine		Ambient Air Temperature Sensor Circuit Low	Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)	Crankshaft Position Sensor A Circuit Low Input

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

DF031 Description

DF031 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For DF031 Code

The reason of DF031 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

DF031 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

	Example: 0140