jacobcartmill

iTrader: (6)

well, after pondering on why my car was lean on the dyno @ 10psi with a walbro fuel pump and a FMIC, i realized that i have never changed my fuel filter since i have owned the car... and judging by the previous owner who i knew personally, i dont think the fuel filter has been changed in a looong long time... so i'll be changing it tomorrow.

could this be robbing me of precious fuel pressure? i think this could be why my car was/is running lean... what other problems could this cause?

Icemark

Usually when the fuel filter gets too clogged, it deforms and just bleeds through (kinda like a HKS foam air filter) allowing dirt into the engine and to clog the injectors.

jacobcartmill

iTrader: (6)

interesting. so lets say the injectors are NEW (hypothetical) and the fuel filter is "clogged". could that cause a lean condition?

Icemark

It would need to be really really clogged.

Hows your PD???

jacobcartmill

iTrader: (6)

um i dunno. can i just remove that damn thing?

i'm installing my e6k tomorrow so i'm going to watch my injector duty cycles while datalogging a wideband and see if they are really the problem (cause i think it has something to do with fuel pressure)

mr_vaughn

iTrader: (1)

this is wjhat i found with a replacement i put in and opened up

jacobcartmill

iTrader: (6)

man wtf, why even use a fuel filter if its gonna do that?

scheistermeister

sry for sorta jackin the thread, but where is the cheapest place to get a fuel filter? autozone wants like 34-40 bucks and even the guy at the counter said it was a lot.

beefhole

iTrader: (29)

atkins has the filter for around 20 bucks I believe. I recently changed my filter. I wasn't expecting to notice any difference in anything, but the engine seemed smoother in the higehr revs.

Impreza2RX7

Man, where did you buy that from, thats a POS..