I keep throwing a P0455 code. The code onlyhappens when the car gets low on fuel.
So the low fuel light comes on and the the CEL a few minutes after that.

This never happened before.....
I recently had the following mods done:

* new injectors ( 1000 cc)
* new intake mani (skunk 2)
* new throttle body (skunk 2 68mm)
* re-tune to E85

thanks in advance for any suggestions to fix this.
that is if there is even a problem?

 

any ideas why this is happening?

 

Its evap system. See if any leak or replace gas cap see if it helps.

 

replaced the gas cap already....as long as I never go low on fuel this doesnt happen?