wideband working?
07-12-2011, 07:19 PM
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wideband working?
i got a wideband and when i am sitting idling it goes from like 13 to 18 back and forth when it goes to 18 u feel the car jerk and can hear it but it does the same thing when cruising just goes back and forth all over the place it will go to 12 then peg the gauge lean when u let off the gas when i went wot in second and i saw 11.1 but when i was at the dyno they had the thing in the tailpipe and that said i was running lean at 12.2 so idk what to believe is my tune that far off or what do u guys think idk how else to explain so ask me and i will try and explain the best i can for you thanks
07-12-2011, 07:36 PM
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i never seen it when it was stock i just got the wideband but when ur cruising it should stay around 14.7 not from 12 to 17 or 18 thats gotta be way off
07-12-2011, 07:45 PM
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Mine took about a week to calm down and quit being crazy. Seems to be pretty normal for them to be really jumpy for a few days.
07-12-2011, 07:47 PM
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ya i have driven the car pry 2 miles with it in i was kinda wondering if it would just take awhile for it to settle in but it was really tight and the wires of the o2 senser are curved pretty tight so i thought maybe i screwed it up somehow
07-12-2011, 07:54 PM
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lol i worry about every possable thing haha not good
what would make them take awhile to start working? doesnt make sense to me.
what would make them take awhile to start working? doesnt make sense to me.
Last edited by blake05SS; 07-12-2011 at 07:54 PM. Reason: Automerged Doublepost
07-12-2011, 08:05 PM
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the afr boucing during regular crusing and idle is normal. you are in what is called closed loop. ur pcm is making adjustments to the stft's and bounces u from rich to lean. you will never hold 14.7 you will always bouce from rich to lean b/c the computer is constantly adjusting to be close to 14.7
when ur o2 sensor senses a lean condition, it will raise the pulse width of the injector, which will lead to a rich condition, and it will make the pulse width shorter ... etc etc repeat all the time. that is why you wont see 14.7 all the time.
when ur o2 sensor senses a lean condition, it will raise the pulse width of the injector, which will lead to a rich condition, and it will make the pulse width shorter ... etc etc repeat all the time. that is why you wont see 14.7 all the time.
07-12-2011, 08:28 PM
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so are you going to tell us what tune youre running or just keep ignoring the question
its also probably going leaner than 18 it just wont display it, might have a vacuum leak also
its also probably going leaner than 18 it just wont display it, might have a vacuum leak also
07-12-2011, 08:31 PM
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18 is excessive ... no doubt, but di engines have the ability to run up to 60:1 in certain situations. i havent looked if u had lsj or lnf. either way. do you see 18 under crusing or just decel? did u put the sensor pre or post cat. to tell u the truth, i dont even think my uego reads to 18 lol, id have to check to see. i think it only goes to 16 is i remember correctly. anyways double check your install, make sure the o2 sensor is in the pipe good n tite. im not sure if an exhaust leak would alter ur readings.
do you see 18 often? under what conditions?
do you see 18 often? under what conditions?
07-12-2011, 08:33 PM
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its mostly just decel but somtimes just driving around town or idling like i say i havent been in the car for more than two miles its at the shop right now and i have a catless dp
Last edited by blake05SS; 07-12-2011 at 08:46 PM.
07-12-2011, 08:44 PM
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my bad didnt read the 2nd post
if you didn't get it custom tuned yet that's part of the problem, it will go lean or decel dfco, if it's doing it at idle then that's a problem, like i said could be a vacuum leak also
if you didn't get it custom tuned yet that's part of the problem, it will go lean or decel dfco, if it's doing it at idle then that's a problem, like i said could be a vacuum leak also
07-12-2011, 08:50 PM
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Is this an innovate unit? If so you need to follow the instruction manual and set any wideband style output to run at the 1/12 rate and not instant, instant is for the narrow band simulator but for some reason they dont ship setup this way.
07-12-2011, 08:53 PM
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well what do u think about at the dyno it read 12.2 but now it reads 11.1 at wot i only did a 2nd gear pull dyno was 3rd and 4th but commanded afr should stay the same
07-12-2011, 08:54 PM
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im not sure i just got a aem ugeo wideband from zzp along with an interceptor how do i know if its a innovate unit