jah1542

My elbow tore, and I've been getting unmetered air into my intake (a 1LE elbow is on the way). However, it seems to me that it also has some kind of fuel problem. I checked the fuel pressure, and it read ~39 PSI at startup, and slowly started climbing into the lower 40s. With the car off, and the pump primed, it held around 40 PSI. I think it's supposed to be @ ~55 (@ idle), right? If so, can the leak at the TB really be the cause of being 15 PSI low? Or is my fuel pump crapping out?

jah1542

ttt
anyone have input?

'94 Bad A Z28

Remove the vacume line from the regulator and it should be somewhere between 42PSI-47PSI at idle.

Bud M

My manual says spec is 41-44 mpg

shoebox

41-47 psi is normal range with vacuum line removed, per the GM manual.

Injuneer

I wish my car got 41-44 mpg.

shoebox

Lol, my brain totally corrected for that error.

Bud M

Actually if it did you might not like it. My guess is that there would be a performance trade off...