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What causes the engine code P2433 on a Chevrolet Trailblazer?

Vehicle: Chevrolet Trailblazer

2 Answers

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by (11.0k points)
HI there

This code happens when the secondary air system shows to much pressure. This is usually the result of a faulty AIR sensor or an issue with the wiring harness
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P2433 CHEVROLET - Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1

Read more: https://www.autocodes.com/p2433_chevrolet.html

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