P2443 Trouble Code

View P2443 obd/2 error code description and symptoms. P2443 engine photo

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

Difficulty Level (Expert)
Level
Repair Time (60 Min.)
Time
Cost Prediction : $ 80-120

P2443 Error Code Repair Process :

If your p2443 secondary air injection system switching valve stuck closed bank 2 check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P2443 and engine control unit are in charge of monitoring a bunch of different p2443 secondary air injection system switching valve stuck closed bank 2, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool P2443 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Common Causes of P2443

A common cause of code P2443 is the failure of P2443 Secondary Air Injection System Switching Valve Stuck Closed Bank 2, but there are several other possible causes as well, such as ;

P2443 code for all cars

You can view according P2443 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P2443 Ghia 1500 +P2443 Toyota Cami +P2443 Bentley 6.5-litre +P2443 Fiat Scudo +P2443 Mazda Kusabi

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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