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U1946 Engine Trouble Code

Meaning of U1946 engine trouble code is a kind of network trouble code and when the check engine light comes U1946 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

U1946 Fault Symptoms :

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

If one of these reasons for U1946 code is occuring now you should check U1946 repair processes.
Now don't ask yourself; What should you do with U1946 code ?
The solution is here :

U1946 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.

U1946 Code Meaning :

U	1	9	4	6
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering	Injector Circuit Malfunction - Cylinders	Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)	Ignition Coil A Primary/Secondary Circuit Malfunction

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

U1946 OBD-II Diagnostic Network (U) Trouble Code Description

U1946 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For U1946 Code

The reason of U1946 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U1946 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