So last week I had a check engine light and my Edge programmer gave me a P0012 TPS code. I replaced the TPS and my truck has ran fine since Saturday. This morning I got the P0012 code again, but didn't really notice any problems. Anyone have any idea what might be going on?

 

P0012 is for: Cam Position Actuator Over Retarded (Bank 1). Looks like something withing the VCT system malfunctions.

 

What is a fix for this?

 

Could be a few things:

1st make sure that the oil level is where it's supposed to be.

Could be a VCT solenoid. Read here: http://www.howstuffinmycarworks.com/VCT_Solenoid.html

Could also be a Cam Position Sensor.