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Hi I've checked all d Internet n I basically almost did everything I've replaced d secondary valve n another valve n nothing still check engine light vsc n traction lights come on I'm fed up don't know what to do

Vehicle: 07 toyota tundra 4.7

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Hi there,

This code indicates an issue with the vaccum switching valve. Here is some info for you.

P2440 TOYOTA - Secondary Air Injection System Switching Valve Stuck Open Bank 1

Read more: https://www.autocodes.com/p2440_toyota.html

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