Hi!
I’ve been told there is a check valve towards the rear of the car, but I didn’t know if a check valve was built into the TT pump. My car is a NA and I put in a TT fuel pump without the fuel pressure regulator on the pump. I of course have a fpr in the engine bay but nothing on the pump since I was told it was not necessary when installing on an NA. My car doesn’t hold fuel pressure after I turn it off and it has a very strong fuel smell near the carbon canister. Any info on where the fuel check valve can be located and bought, and where the vapor valve to carbon canister is would be great! Thank you!