Check Engine light comes on, reduced engine power, error codes P2127 and P2138.

What is your question?

I've replaced the sensor peddle and the sensor connector. I've reset the ECM. Check engine light still comes on and the engine shuts down. P2127 says it the voltage level. P2138 says its the sensor peddle. Not sure what to do next, other than replace the ECM.

What makes this problem better or worse?

Erase scan codes works for a few miles then check engine light comes on eng shuts done

How long has your 2008 Cadillac SRX had this problem?

a few weeks