P0503 Engine Code Repair
Meaning of P0503 engine trouble code is a kind of powertrain trouble code and P0503 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,140 and you can't do it yourself unless you're an experienced mechanic.
P0503 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P0503 code is occuring now you should check P0503 repair processes.
Now don't ask yourself; What should you do with P0503 code ?
The solution is here :
P0503 Possible Solution:
Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.
P0503 Code Meaning :
P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
0
Intake Valve Control Solenoid Circuit Low
5
O2 Sensor Heater Circuit Malfunction
0
Crankshaft Position Sensor A Circuit Malfunction
3
Glow Plug/Heater Circuit 'A' Malfunction
Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.
P0503 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0503 OBD-II Trouble Code The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a P0503 code.Main reason For P0503 CodeThe reason of P0503 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction. |
P0503 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.