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I have changed the sensor and checked all the wiring and connecter nothing seems to be wrong with any of it.

Vehicle: 2005 Chevrolet trailblazer 4.2

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P0106 MAP sensor perfromance

When this code appears it sould set a freeze frame. using the freeze would give a good indication of when the code was set, What you would look for is wheter it was set a highway speed or at idle,

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