I have replaced the TPS and am still having problems. Now the durnago seems to be doing the same thing but more noticeable when you are pulling a hill with minimal acceleration. When you step on the accelerator it will stop but when you are going up a hill it is like it is missing or surging. It will sometimes do it when you are taking off from a stop. I have also noticed it more when the engine is warmed up. Any suggestions Thanks Dave

 

Any check engine codes?

 

No there are no check engine codes.

 

Hate to say it but it maybe the PCM - replacing it was what finally solved my engine surging issue, and gave me a lot more power...
in the meantime I suggest having a look at the Idle Position Sensor that can get carboned up...try either replacing it or cleaning it...plenty of posts on this issue.
There is a warranty on PCM's you may be able to claim on it


Chris