Oh, that dumb thing. It's a "fuel pulsation damper." What it does? Not a clue. Just be careful taking it off; if it breaks you have to buy the whole line from the dealer.

The filter is on the exterior of the regulator. If you bought a new regulator, you should have gotten a new filter.

 

ahhh, i just found it odd pulling up the numbers online found nothing.... and i first bought a new regulator, and now its sitting back in its box as the new fuel pump i bought from rockauto.com, had a new regulator on it as well.

 

Yeah, that piece is part of the actual "part." Did you buy a fuel pump assembly, and not just a pump?

 

yes, i purchased the whole assembly with the sending unit, pump , fuel float assembly, the whole works...

 

That's why it came with it then.

 

well for the price i figured i'd get the whole works, as i had fuel gauge issues anyway... thats discussed in another thread i started right after i got my neon.... and now it goes like she used, and my gas gauge is accurate..

now on to the cylinder 3 misfire, i know its related to low comression, (like 20psi on start and builds up to like 70 versus the other cylinders which start at like 60 and max at 110ish (its guestimates, cuz i dont remember the exact number, will post that when i find my notebook i wrote them down on)

so i've been told its either piston rings or a valve/ valve seat... how do i go about testing to see which this would be? unfortunately my compression tester doesnt have the possibilities to hook an air line to it...

 

A leakdown test, IIRC, will tell you if it's valves or not. If the valves are good, then most likely rings since the car still runs good.