P1931 Mazda Axela OBD Code

OBD/2 P1931 error code description and symptoms.

Fuel Rail Pressure Sensor in Range But Low The comprehensive component monitor (CCM) monitors the FRP pressure for acceptable fuel pressure. The test fails when the fuel pressure falls below a calibrated value. Low fuel pressure Damaged FRP sensor Excessive resistance in circuit Low or no fuel A FRP PID value below 551 kpa (80 psi) indicates a failure Low or no fuel A FRP PID value greater than 896 kpa (130 psi) indicates a failure.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

P1931 Mazda Axela Error Code Repair Process :

If your knock sensor 1 circuit low input (bank 1 or single sensor) check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P1931 and engine control unit are in charge of monitoring a bunch of different knock sensor 1 circuit low input (bank 1 or single sensor), and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mazda Axela P1931 OBD2 Code

A common cause of code P1931 is the failure of Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor), but there are several other possible causes as well, such as ;

Erratic camshaft position due to low oil pressure
Camshaft advance mechanism binding (VCT unit)
Dirty Oil
Lack of fuel

P1931 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1931 Mazda Axela OBD Code

P1931 Mazda Axela Error Code Repair Process :

Common Causes of Mazda Axela P1931 OBD2 Code

P1931 code for other Mazda cars