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U2981 Engine Trouble Code

Meaning of U2981 engine trouble code is a kind of network trouble code and U2981 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.

U2981 Fault Symptoms :

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

If one of these reasons for U2981 code is occuring now you should check U2981 repair processes.
Now don't ask yourself; What should you do with U2981 code ?
The solution is here :

U2981 Possible Solution:

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U2981 Code Meaning :

U	2	9	8	1
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering (Injector Circuit Malfunctions Only)	Injector Circuit Malfunction - Cylinders	Ignition/Distributor Engine Speed Input Circuit Malfunction	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.

U2981 OBD-II Diagnostic Network (U) Trouble Code Description

U2981 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For U2981 Code

The reason of U2981 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U2981 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.

	Example: 0140