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P2946 Engine Trouble Code

Meaning of P2946 engine trouble code is a kind of powertrain trouble code and P2946 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.

P2946 Fault Symptoms :

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

If one of these reasons for P2946 code is occuring now you should check P2946 repair processes.
Now don't ask yourself; What should you do with P2946 code ?
The solution is here :

P2946 Possible Solution:

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

P2946 Code Meaning :

P	2	9	4	6
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine	Fuel And Air Metering (Injector Circuit Malfunctions Only)	Injector Circuit Malfunction - Cylinders	Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)	Ignition Coil A Primary/Secondary Circuit Malfunction

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.

P2946 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P2946 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For P2946 Code

The reason of P2946 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

P2946 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

	Example: 0140