90 - Running out of breath at 5000 - No Codes

[dondon]

Originally Posted by scottfab

41psi is not low. It's way low.
Yes fuel filter on GP first if you're not sure how long it's
been but note likely the issue.
You're sitting right on the problem I'd say.
One or both fuel pumps. If you get 41 at about idle
imagine how it may drop off under high demand.
Best investment would be an extension and some tape.
Seems prudent before proceeding.

A note about the pig tail. It's the only one at that
location so unless someone added something you've got it.
It ONLY works as a test when the key is off. It does nothing
with key on because the way it is routed through the relays.
ALSO important to note with key off and applying 12v to the
pig tail you get BOTH pumps running. It's a great static test.
From there you can remove one or the other of the fuel pump
fuses to see what pressure each pump can do. You do not want run
these pumps for long periods of time through the pig tail. Just saying.... do each test, not the pressure and shut it off.

As for a place to work on your car. YOU will be the best influence
on how well they do with the car but you have to study up here
on the forum and show them the results.

Thanks for the insight on how the pigtail is intended to function, I'm a newb at this.

I've ordered a fuel filter, in hindsight I should have just bought one from a local store and had instant results. I will pickup the long hose likely today, and that way be able to run a test tomorrow (filter should arrive same day).

If it is the fuel pump. Which one should I get, I seem to remember running into a previous post of yours where you weren't such a big fan of the Airtex

On 06-12-2012:
"I wouldn't touch an Airtex ever again. My first "How to" on a fuel pump replacement ended in the Airtex failing. Maybe I just got a bad one but not willing to take a chance again. The flow rate on the P240KC is just fine for a stock engine. "


Would you recommend the P240KC or something else?


Thanks again to this community for being so helpful, experience really is the key to success with this IMHO