P0004 trouble code decoding
P0004 trouble code decoding
P0004 - Engine or automatic transmission error. These are Errors arising from the malfunctioning of the engine, automatic transmission or control elements and analysis of the operation of the internal combustion engine or automatic transmission.
Decoding and description of error P0004 in Russian and source.
In Russian:
Fuel Regulator Control - High Voltage
In English:
Fuel Volume Regulator Control Circuit High
OBD2 scanners. From cheap for personal use to professional Used car parts for cars and trucks Used car parts for cars and trucks Error P0004
Not only that OBD2 errors in the operation of the engine or other electronic systems of the car do not always directly indicate an inoperative element, but in different brands and models of cars the same error can occur as a result of a malfunction of completely different elements of the electronic system.
We hope, with your help, to form a cause-and-effect relationship for the occurrence of this or that OBD2 error in a particular car (make and model). As experience has shown, if we consider a certain brand-model of a car, then in the overwhelming majority of cases the cause of the error is the same.
If the error indicates incorrect parameters (high or low values) of any of the sensors or analyzers, then most likely this element is working, and the problem must be looked for, so to speak, “upstream”, in the elements of which the sensor or probe analyzes the work.
If an error indicates a permanently open or closed valve, then here it is necessary to approach the solution of the issue wisely, and not to change this element thoughtlessly. There may be several reasons: the valve is clogged, the valve is stuck, the valve receives an incorrect signal from other faulty components.
Errors in the operation of the OBD2 engine and other systems of the car do not always directly indicate an inoperative element. The error itself is indirect data about a malfunction in the system, in a sense, a hint, and only in rare cases is a direct indication of a faulty element, sensor or part. Errors (error codes) received from the device, the scanner require correct interpretation of the information, so as not to waste time and money on replacing the working elements of the car. The problem often goes deeper than meets the eye. This is due to the circumstances that informational messages contain, as mentioned above, indirect information about the disruption of the system.
Here are a couple of common examples. If the error indicates incorrect parameters (high or low values) of any of the sensors or analyzers, then most likely this element is working, since it analyzes (gives out certain parameters or values), and the problem must be looked for, so to speak, “upstream”, in the elements whose work is analyzed by the sensor or probe.
If an error indicates a permanently open or closed valve, then here it is necessary to approach the solution of the issue wisely, and not to change this element thoughtlessly. There may be several reasons: the valve is clogged, the valve is stuck, the valve receives an incorrect signal from other faulty components.
Another point that I would like to note is the specificity of a particular brand and model. Therefore, having learned an error in the operation of the engine or other system of your car, do not rush to make hasty decisions, but approach the issue in a comprehensive manner.
