P2443 toyota 4runner. Find a new 4runner at a toyota dealership near you or build price your own toyota 4runner online today. Code p2443 is an indication that the air injection system switching valve is not working or a sensor problem that will cause no drive symptoms. P2443 meaning to accelerate the activation of catalyst when warming up the engine the air injection system pumps the secondary air to the exhaust manifold by pressure.
P2443 toyota description to accelerate the activation of catalyst when warming up the engine the air injection system pumps the secondary air to the exhaust manifold by pressure. It often appears with other codes such as p0420 p0441 or p0440. P0446 indicates that there is a fault in the evaporative emission control system.
The secondary air is supplied by the air pump and it is pumped to the exhaust manifold through the air switching valve. This trouble code references a number that is given to you when you plug your 4runner into a obdii scanner. A very common trouble code with the toyota 4runner is the p0446 code.
The exhaust emissions will be affected and will cause the vehicle to fail emission testing. If you have a 2005 2008 toyota tundra 47l with a code p2440 p2441 p2442 andor p2443 you may have a faulty air injection pump valve andor leaking supply. Official 2021 toyota 4runner site.
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