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U2931 Engine Trouble Code

Meaning of U2931 engine trouble code is a kind of network trouble code and U2931 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.

U2931 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U2931 code is occuring now you should check U2931 repair processes.
Now don't ask yourself; What should you do with U2931 code ?
The solution is here :

U2931 Possible Solution:

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

U2931 Code Meaning :

U	2	9	3	1
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering (Injector Circuit Malfunctions Only)	Injector Circuit Malfunction - Cylinders	Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)	Crankshaft Position Sensor A Circuit Low Input

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U2931 OBD-II Diagnostic Network (U) Trouble Code Description

U2931 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For U2931 Code

The reason of U2931 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

Parts or components should not be replaced with reference to only a U2931 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

	Example: 0140