P2138 on CHEVROLET IMPALA

"I got a P2138 code for Accelerator Pedal Sensor error. From what I have seen this is caused by the two sensors not matching. I have repaired this issue previously about 3 years ago, but it has happened again. This seems to be a common issue with GM cars of this era."

"Displayed on panel "reduced engine power" . on star diagnosed service code "p2138". on 05/01/2012 while driving through a large intersection my engine power was reduced to 3 or maybe 5 mph. i was trying to get through the intersection without the acceleration that was so desperately needed."

""reduced engine power" service code p2138. on 05/01/2012 while driving through an intersection my engine power was reduced to 3, maybe 5 mph. i was trying to get through that intersection without the acceleration that was so desperately needed. this is definitely a safety issue."

"Check engine light Code p2138 Change the throttle pedal position sensor the next day the car dropped down to 5 to 10 mph information center said engine safety been reduced to 5 to 10 mph plus my traction control light came on then information center said service traction control put my old thrott"

"The gas petal sensor is reading a code P2138 (Accelerator Petal Position Sensors 1-2 not plausible). My father has changed the petal not once but twice and erased the code but it keeps coming back. Also getting a p0172 code as well."