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DF003 Engine Trouble Code

Meaning of DF003 engine trouble code is a kind of and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

DF003 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for DF003 code is occuring now you should check DF003 repair processes.
Now don't ask yourself; What should you do with DF003 code ?
The solution is here :

DF003 Possible Solution:

DF003 Engine

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.

DF003 Code Meaning :

D f 0 0 3
For Engine Ambient Air Temperature Sensor Circuit Low Cold Start Injector 1 Malfunction Exhaust Gas Recirculation Sensor B Circuit High

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

DF003 Description

DF003 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For DF003 Code

The reason of DF003 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

DF003 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.