I have an S5 TII engine that smells like fuel after coming off boost... Engine is basically stock, factory ECU, etc, but does not have the plastic muffler on the blow off that's hidden in the FC chassis (no place for it in FB chassis). Fuel pressure is OK & there are no injector or fuel system leaks. I did a pressure leak down test. Am I smelling this because the blow off vent isn't going out through the "muffler" under car by the RF tire or is there something of concern going on?

Thanks

 

Exhaust leak mabe?

 

Do you still have the pulsation damper on or did you banjo bolt it?

 

how embarrassing... forgot to subscribe to my own thread.

yes, pulsation damper is still there.

 

sorry, never updated the solution... turned out I was getting boost into fuel vapor system added a check valve, smell is gone