Just finished washing my car about 20 minutes ago, so I jumped in it out on the street, and figured I drive up the street just for a quick spin, and to dry off any water left on the car. I ran into my neighbor, and he asked if I finished my car yet because it sounds like a beast, and so I reversed and let him check out under the hood. My car started to have an irregular idle, so I jumped in it and tapped the gas when I noticed my CEL light was on

CODE 43 (Fuel Supply System)

Can someone explain to me what possibilites could have caused that? Could it be to much fuel? My car recently stalled on me while idling, and this only happened after my friend changed my settings a little bit. When I had things set my way it never stalled or threw that code.

SETUP:

14b Turbo
HF Manifold
Greddy Type S BOV
VAFC
DSM 450cc Injectors
Resistor Box
Walboro 255lph Fuel Pump
Custom Front Mount Intercooler

any suggestions are helpful . . . . . I will be on the net for most of the night so IM me if you have AIM at: vtec92civic

Thanks Guys! 8)

 

check ur fuel lines and make sure ur getting corect fuel pressure.. and try getting everything back the way it was before ur friend messed with it.

thats all i can think of.

 

whats ur air/fuel readin at idle on your vafc , that should tell you the problem...if its irratic , or rich/lean you can diagnose from there

 

well I know the idle is irratic . . . . but I don't understand why all of a sudden it's doing this. Fuel Pump is brand new . . . FPR is the stock one, and my Fuel Filter was changed a few months ago.

 

bump Need help people . . . I reset my ECU this morning . . . took my car for a test drive for a good 30 minutes, and right as I pulled up to park infront of my house it started irratic idling again, so I ran inside to check the dash and the CEL Light came back on. I revved it a couple times, and let off the gas and the car died on me . . . what could this be?

 

Sorry for posting so late but chek your 02 sensor I had the same code and my problem was the aftermarket 02 sensor was wired wrong. I bought the car from this dude and he told me I can't figure it out If your car was running too rich for a while it will burn up the 02 sensor you might need a new one
Chris

 

Means defective or malfunctioning fuel supply:

Check FP
Check O2
Check Fuel filter
etc..

(All as mentioned)

 

could be your o2 sensor. id check the fuel pressure first. get yourself a fuel guage and make sure youre idling at 40psi