and the old ones smelled of gas and were wet... fuel pressure regulator? checked, no codes. had codes before but went away when i changed the first 4 plugs on the driver side and the pcv valve.

 

maybe the pressure regulator but more likely the injectors are stuck open? Is there anyone close to you with hp tuners of EFI live to go for a drive and log the O2 data and fuel trims?

 

i borrowed a scan tool that gives live info, i`ll write down some of the numbers it gives and post up

 

cool, but going for a drive while logging lets you see real time data, that would be really useful to see if fuel trims are adding too much fuel or the actual working contition of the O2 sensors

 

I`ll try to get someone to log while i drive today. yesterday i drove 75 highway miles and i went from past full tank to half on the mark.

 

yeah something just doesn't add up pal.

if there any exhuast leaks or blowing on the headers before the front O2's as these control the fueling? Your plugs defo shouldn't be wet after a drive ! too much fuel!!

 

no leaks as far as i can see or hear. yup definitely a mind boggler anyways i`ll be back later with the numbers

 

______________________________IDLE____________ DRIVE

ECT TEMP______________________ 204____________ 213
STFT B1 %_____________________ -1.5 ___________2.3-3.1
LTFT B1 % ____________________ 7.0 ____________ 8.5-10.9
STFT B2 % ____________________ 1.5 _____________3.9-4.1
LTFT B2 % _____________________ 3.1_____________ 8.5
MAP (HG) ______________________9.1______________ 29.8
SPARK ADV (DEGREES) ___________ 17 _____________38-40
MAF __________________________ .646 ____________ 3.2
02 B1S1 _____________________ .07-.70 ____________ .7-.8
STFT B1S1 ____________________0-.7 _____________ 3.1-3.9
O2 B1S2 _____________________ .75 ______________ .75-.69
STFT B1S2____________________ NA_______________ NA
O2 B2S1 _____________________.07-.5______________ .7-.8
STFT B2S1 __________________ 1.5-3.5 ____________ 3.1-4.6
O2 B2S2 _____________________ .83________________ .80
STFT B2S2____________________ NA__________________ NA

anyone,PLEASE translate this for me if possible, gas prices are killing now, we`re at 4.09/gal

 

any takers? where should the numbers supposed to be?

 

your long term fuel trims are quite high at 8-10% extra fuel. Mines running rich but not that much and I have no cats and headers and re-positioned sensors. I'll check with my stock long when at home and let you know what they were

you gas is way cheap still a US gallon is about 4 liters right? In UK we pay £1.30 a liter so do conversion and that is nearly $2 a liter so I PAY $8 a gallon !!!!