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4g63t fuel problem [Archive] - Garage208
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TWIZT3D_4G63T
06-27-2009, 04:11 PM
i cant figure it out but my eclipse idles fine but sputters until 4000 rpm, then it revs fine. does anyone know what it could possibly be?
THERB4U
06-27-2009, 04:16 PM
the ratcheting dingle arm is interfering with the discombobulator. Loosen it up a bit to allow more flow.
TWIZT3D_4G63T
06-27-2009, 05:37 PM
haha thats a good one... no really?
northendtrooper
06-27-2009, 06:30 PM
Your Fuel Pump is bad. Pull it out and check it out. I bet you blew it up (figuratively)
TWIZT3D_4G63T
06-27-2009, 06:54 PM
thanks austin ill check it out. could the filter be a problem too?
northendtrooper
06-27-2009, 07:08 PM
Yeah. Essentially you are starving it to a point meaning a couple of things with the fuel system. Go buy a new inline filter and fuel pump and that should fix your problem. The fuel filter is one of the most over looked filter/sensor for issues.
TWIZT3D_4G63T
06-27-2009, 07:23 PM
awesome thanks man
THERB4U
06-28-2009, 09:46 AM
Wait a minute, that doesnt make sense to me. Granted, Im not a DSM guy and not that great with driveability issues, but if the fuel pump is bad why would it rev fine over 4k rpm when it has a higher fuel demand?
northendtrooper
06-28-2009, 11:00 AM
I know its weird but My fuel pump took a dump on me and before 4krpms it would sputter like a sum bitch, then once I boosted I would get the necessary fuel somehow. Turns out though I had it clogged with cardboard and my pressure release valve was bad, aka bad fuel pump. So I swapped it out for a HP 255lph pump and never had that issue again.
CHRIFFIN
06-28-2009, 01:14 PM
the ratcheting dingle arm is interfering with the discombobulator. Loosen it up a bit to allow more flow.

w3rd
TWIZT3D_4G63T
06-28-2009, 04:01 PM
before 4krpms it would sputter like a sum bitch, then once I boosted I would get the necessary fuel somehow.

thats exactly what my car does. i need to pull that pump out... DSM fail