TBS 10320 TBI fuel pressure tap adapter 7/16 thread

This thing is great! I needed to test my fuel pressure on my 91 TBI suburban so i bought this instead of one of the ones that go in place of the fuel filter. Installing this will test your patience! prepare for lots of cussing and wtf's...lol. The fitted fuel lines dont like to bend and you will have to figure out the right bends to make it work with the little amount of space that you have. I ended up screwing the fuel line into the adapter a few turns and then screwing the adapter into the throttle body and then tightening up the fuel line....but only after an hour of cussing did i figure this out! The adapter is 5 stars....the stock GM fuel lines....1 star....lol. But after all is said and done...it was worth it.

Love this thing makes troubleshooting your tbi a breeze

Discovered it leaks a little when moved side to side. Only needed it temporarily though. Thinking the seals inside are a bit dry.

This is exactly what I needed to install a fuel pressure gauge on my 1993 Sierra. This is the only one that I have found that is compatible with my vehicle and doesn't cost an arm and a leg to purchase. I am extremely happy and the Throttle Body Shop had it shipped out ASAP, it arrived a day before I expected it.

Nice product but like in the picture, it does not come with a cap or instructions or anything but this piece.

Does what its supposed to do (I dont have to throw a temporary T in for a pressure test).

Very nice product easy to install now I can check on the fuel pressure

Works good but tough to reposition lines because of length of fitting