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U0543 Engine Trouble Code

Meaning of U0543 engine trouble code is a kind of network trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

U0543 Fault Symptoms :

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

If one of these reasons for U0543 code is occuring now you should check U0543 repair processes.
Now don't ask yourself; What should you do with U0543 code ?
The solution is here :

U0543 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.

U0543 Code Meaning :

U	0	5	4	3
OBD-II Diagnostic Network (U) Trouble Code For Engine	Intake Valve Control Solenoid Circuit Low	Fuel Composition Sensor Circuit Malfunction	Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)	Exhaust Gas Recirculation Sensor B Circuit High

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

U0543 OBD-II Diagnostic Network (U) Trouble Code Description

U0543 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For U0543 Code

The reason of U0543 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a U0543 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

	Example: 0140