My 05rx8 is an automatic and has a constant p2096 code. It makes a knock sound and randomly shuts off. Low idle when warm. Y?

 

can you describe the knock sound? what do you mean low idle when warm?

have you ever cleared the code if so how long until it came back?

 

It sounds like a rode knocking in a 360. Cleared code but comes back if I drive longer than ten minutes. When the engine temp
Starts to climb the idle drips off. At mid range temp the idle is so low the engine has cut off before

 

first- replace the o2 sensor.

 

I've had the post sensor replaced and the plugs an wires. Should I run a dyno on it and comp?

 

A compression test may be in your future but have you checked for vacuum leaks? Start simple and think, fuel, spark, and fire.