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    P0406 wont go away

    Replacing the sensor caused my P0406. After reading the links above the sensor I put in isn't the right one. I am not sure what Chevy sold me. The truck was looked up by vin. Does anyone know if there is a MAP sensor on the intake in the valley or just the boost sensor on the elbow with the...
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    P0406 wont go away

    I had the p0406. I haven't looked into it because the radiator started leaking and I am fixing that first. It's been a bad month for my truck.
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    P0406 wont go away

    I have the same problem after replacing the MAP sensor that is behind all the egr sensors and valves. This only happens at startup, I can clear the code with the truck running and it will not come back on till the truck is shut off for a bit. My truck is a 2002 California truck LB7.