Does anyone know where to obtain the special adapter to test a 2001 Acura TL fuel pressure? There is an adapter that is used in order to use your fuel pressure tester.

 

I know this is an old thread but I am running in to the same problem. I've been chasing the dreaded multiple mis-fire codes with little to no luck. I want to check the fuel pressure but will need to get ahold pressure gauge attachment (07vaj-0040100).