Anybody with a SR20DET experience this?

[sepulchral]

Ive posted before about this. I have a front mount, full exhaust, greddy profbspec2, walbro fuel pump.

Car is stuttering at high rpm it sounds like rapid backfires and motor stops producing power that it should be.

Things I've done: Changed Spark Plugs(Denso Iridium 0.43mm), Changed MAFS(cleaned).

Things ive noticed: Fuel pump wiring is ghetto, all this stuff happened after i blew the fuel pump fuse, Fuel pump is loud as shit. Somedays car runs like a dream some days it does that stuttering stuff.

Anyone with knowledge of any or all possible causes of this problem please post or Instant Message me at School4Heros

Thank you zilvia community

[msaskin]

Sounds like your spark plug gap is off. Gap it down to .032 or so and see how things go.

~matt

[Yoshi]

what is your fuel pressure at idle/WOT?

[JagdStealth]

Plug gap is too high, gap it down to .36 or so and you'll be fine...

http://www.airbrushshoppe.com/sports/images/cracked.jpg

[sepulchral]

I did that (forgot to post) its at .34 still does this shit, yall fuel pumps loud as shit too?

[Demik]

walbros is hella loud for me......

[sepulchral]

top.....................................

[Steeles]

check your wiring. if the pump wiring looks ghetto test the wires. get a line tester and go through it.

[sepulchral]

Ok things ive done:
DENSO Iridium plugs gapped to .32mm
Changed MAFS

anybody?

[Yoshi]

um... ok, like I asked b4, what's your fuel pressure at idle/WOT?
are you at least running an adjustable FPR to go with the walbro?
you're not going past stock boost without some sort of fuel control/monitoring are you? that'd be stupid and dangerous :(

[sepulchral]

IT WAS THE FUEL FILTER

one end of filter released clear gas other released milky brown gas.

all your suggestions helped solve any future probs i might have thank you zilv commun.