a/f readings a little weird...???
a/f readings a little weird...???
my a/f ratio has been a little weird. Before it use to idle (when warmed up) between 14.3 and 15. Now its fluxuating from 13.5 all the way to 16.2. Does anybody know what may be the cause? any reason for me to be concern?
wonder if this is the reason why my gas mileage is like crap now. 200 on a full tank.
thanks in advance
wonder if this is the reason why my gas mileage is like crap now. 200 on a full tank.
thanks in advance
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What size injectors?
I have the UTEC with a ProCharger, and am running [overboard] 750cc injectors. My idle has never been perfect and the AF reflects that. Mine does about the same, and as for awhile - it will go from around 13.5 to 16.0 steadily. She has her good and bad days...
I don't think there is any concern. Does it do this at cruise, or does it mildly settle down? Has the weather changed [or been changing] drastically?
I have the UTEC with a ProCharger, and am running [overboard] 750cc injectors. My idle has never been perfect and the AF reflects that. Mine does about the same, and as for awhile - it will go from around 13.5 to 16.0 steadily. She has her good and bad days...
I don't think there is any concern. Does it do this at cruise, or does it mildly settle down? Has the weather changed [or been changing] drastically?
Have you ever gone into limp mode?
I hit limp mode a couple of times due to overboosting and maxing the MAF. After that I started having the same idle fluctuations. After a while I started seeing different readings under boost as well. I changed my MAF and it seems to have fixed the problem.
I don't know if there is a way to test just your MAF but it wouldn't hurt since a new one is about $300.
I hit limp mode a couple of times due to overboosting and maxing the MAF. After that I started having the same idle fluctuations. After a while I started seeing different readings under boost as well. I changed my MAF and it seems to have fixed the problem.
I don't know if there is a way to test just your MAF but it wouldn't hurt since a new one is about $300.
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Originally Posted by 2slo2bfurious
Maybe its your O2 sensor? Does it idle steady?
Originally Posted by Meatshackle
Have you ever gone into limp mode?
Originally Posted by HomieG35
Is it back to normal?
now i'm not too concern with the a/f but am freaking out about the car shutting off when idle dips below zero. I might have a leak somewhere but can't seem to find it.
Originally Posted by turbonetics-g
try doing a free air calibration.. what kind of WB02 are you using?
^+1
Sounds like an O2 sensor or fuel problem.
My idle is between 14.3 and 15.4 on a bad day and I have a UTEC and 440's.
how do i do a free air calibration?
i have the aem wideband.
i think i have a hose leak in the fuel regulator. when i poped up the rear bench on the passenger side, i hear a hiss. does anybody know how to remove this and what precaution i should take (mainly to avoid havinf fule spill in my face).
thanks for all the responses.
i have the aem wideband.
i think i have a hose leak in the fuel regulator. when i poped up the rear bench on the passenger side, i hear a hiss. does anybody know how to remove this and what precaution i should take (mainly to avoid havinf fule spill in my face).
thanks for all the responses.
In the regulator or in a hose?
Either way there will be some fuel come out but the best thing is to let the car sit for a while (1+ hour) and then go slow. There will be a lot less pressure that way.
Either way there will be some fuel come out but the best thing is to let the car sit for a while (1+ hour) and then go slow. There will be a lot less pressure that way.