Author Topic: running rich  (Read 2511 times)

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Offline sharpxmen

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Re: running rich
« Reply #15 on: September 04, 2011, 09:13:06 PM »
i disconnected the battery and swapped it tonight. noticed a little bit of difference but not alot. still drops to 10.9 on my gauge.  :deadhorse:

im gonna get a cat this week and see if maybe that will help., i dont see how that will effect it but we will see


the cat won't change your afr since yours is gutted (i'm not saying you shouldn't get one)

you have a different problem, could be bad ground on the stock o2 or like he ^ said something with the fuel pressure maybe

do you have the stock injectors?

what wideband do you use?
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

WranglerCOdy

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Re: running rich
« Reply #16 on: September 04, 2011, 09:33:04 PM »
the cat won't change your afr since yours is gutted (i'm not saying you shouldn't get one)

you have a different problem, could be bad ground on the stock o2 or like he ^ said something with the fuel pressure maybe

do you have the stock injectors?

what wideband do you use?

wideband is a glowshift and i am running stock injectors. i haventput anything into the fuel system not even a fuel filter.

Offline sharpxmen

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Re: running rich
« Reply #17 on: September 04, 2011, 11:23:03 PM »
wideband is a glowshift and i am running stock injectors. i haventput anything into the fuel system not even a fuel filter.

where is the wideband o2 sensor mounted?

EDIT:
also (assuming is not a fuel pressure issue or that your o2 sensor has good ground and there's no electrical problem on the signal wire),
1. which one did you get? is it the one with analog (datalogger) outputs? if so you can delete your factory o2 and use the 0-1v analog out from your wideband.

2. did you calibrate the wideband with the sensor out of the exhaust (not installed) - it is probably the best way to calibrate it, if you did it with the o2 sensor in the downpipe i'd say remove it and leave it out during calibration.
« Last Edit: September 04, 2011, 11:42:47 PM by sharpxmen »
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

WranglerCOdy

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Re: running rich
« Reply #18 on: September 05, 2011, 09:26:25 PM »
where is the wideband o2 sensor mounted?

EDIT:
also (assuming is not a fuel pressure issue or that your o2 sensor has good ground and there's no electrical problem on the signal wire),
1. which one did you get? is it the one with analog (datalogger) outputs? if so you can delete your factory o2 and use the 0-1v analog out from your wideband.

2. did you calibrate the wideband with the sensor out of the exhaust (not installed) - it is probably the best way to calibrate it, if you did it with the o2 sensor in the downpipe i'd say remove it and leave it out during calibration.

i will try and recalibrate it tomorrow. and it make a difference it the little screwon the bottom for the butter fly messed with. i think it was screwed all the way down.