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P0407 Engine Trouble Code

Meaning of P0407 engine trouble code is a kind of powertrain trouble code and when the check engine light comes P0407 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.

P0407 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 P0407 code is occuring now you should check P0407 repair processes.
Now don't ask yourself; What should you do with P0407 code ?
The solution is here :

P0407 Possible Solution:

P0407 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.

P0407 Code Meaning :

P 0 4 0 7
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

P0407 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0407 OBD-II Trouble Code Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Dependin P0407 code.

Main reason For P0407 Code

The reason of P0407 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

P0407 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.