[97Formula]

Originally Posted by sweetbmxrider

Actually, your previous fuel pressures were correct. 55-60 is too high. GM specs 40-49 I believe Key On Engine Off and 10 psi less engine running. There is no fuel pressure sensor so the engine wouldn't throw a code for that ever.

I wasn't expecting fuel pressure to throw a code.....was thinking that I should've had at least a trouble code or SES light for a LEAN fuel mixture, or a misfire, or something...

This was a GM dealer telling me where the specs should be for this car. Is there an issue with the fuel pressure being that high? And how would "the customer" (me) challenge the dealer mechanics what the correct fuel pressure should be? The engine runs better now than before the pump replacement (they also "power-cleaned" the injectors).

One other thing I noticed (after the fuel pump replacement).....after filling the tank, the gauge was between 3/4 and F (instead of 2mm beyond F). Took it back, they dropped the tank once again to test the sending unit (I am under the impression that GM sells the fuel pump kit with a new sending unit installed). They told me the new sending unit is at the correct spec (90-OHM), and my old sending unit was too high (103-OHM). They tried another fuel pump assembly unit with the same result, same reading, etc. Then they told me they manually tweaked the float arm (not sure how this is done, and they told me they did not bend it). It's a little closer to F but not quite there yet (not sure if this is because they did not put all the gas back in the tank when they lowered it a second time).