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car wont run right without 50% overall fuel trim.

Posted: Wed Mar 09, 2011 3:58 pm
by danyo655
heres a quick log, why would it be running like that, as soon as i put it to 0 or any other percent but 50 it runs like shit or dies, not even 49% works.

Posted: Wed Mar 09, 2011 4:33 pm
by Spunkster

Posted: Wed Mar 09, 2011 8:37 pm
by danyo655
ive already posted my cars specs like a mill times but, 94 accord, f23a1 swap, 5spd f22trans, converted to obd1, s300 chipped p06 ecu. stock with CAI, full custom exhaust, thats all. non of that should matter seing as its stock, and should run without added trim. i just want to know what couldve possible went wrong for it to need all that fuel, and im gettin crappy gas mileage.

Posted: Thu Mar 10, 2011 5:07 am
by AREA876
danyo655 wrote:
ive already posted my cars specs like a mill times but, 94 accord, f23a1 swap, 5spd f22trans, converted to obd1, s300 chipped p06 ecu. stock with CAI, full custom exhaust, thats all. non of that should matter seing as its stock, and should run without added trim. i just want to know what couldve possible went wrong for it to need all that fuel, and im gettin crappy gas mileage.
Post calibration and a datalog of problem

Posted: Tue Mar 15, 2011 9:39 am
by danyo655
this is the calibration, the datalogg is at the top of this post

Posted: Tue Mar 15, 2011 10:36 am
by Spunkster
Perhaps you have the fuel line that connects the fuel rail connected improoperly (washers missing or in wrong place) and it is severly restricting fuel flow.

Posted: Tue Mar 15, 2011 4:44 pm
by danyo655
Spunkster wrote:Perhaps you have the fuel line that connects the fuel rail connected improoperly (washers missing or in wrong place) and it is severly restricting fuel flow.
not a chance, plus it deffinitely using all the extra fuel considering my gas mileage is like 10 miles to the gallon, (exaggerated.) i am gonna try and change out injectors cause i have a feeling one isnt spraying enough, they all sound like theyre working and all show correct voltage, but one screen may be clogged.

Posted: Sat Mar 19, 2011 8:18 pm
by danyo655
pulled injectors today and found 3 outta 4 top filters were clogged, so i switched out my injectors and filters now runs fine without any trim. thanks for the input tho.