My check engine light came on the other day and I'm getting a P0238: Turbo/Super Boost Sensor A Circuit High Input. What could be causing my truck to throw this code?

TIA

 

No one has any input? MAP sensor? I cleaned it, but it wasn't really dirty. Also I've been running around with the MAP sensor un plugged for about 2 weeks. I recently plugged it back in when the light came on.

Any ideas?

 

P0238 Map Sensor Voltage Too High.
MAP sensor voltage input above the maximum
acceptable voltage.

Sorry, I'm not familiar...maybe the voltage the computer sees from the MAP sensor is higher than what the computer's "looking" for.

 

When you say the map was disconnected do you mean electricaly or disconnected from the manifold? Do you have any boost module?

Becasuse how the circuits are wired if you disconnect a sensor the ECM reading for it normally defaults to 5V. It may take a few start cycles to clear the code, normally the ECM wants to see 2 good trips with no faults to turn the CEL off (the ECM can be a little strange about what it considers a trip).