02 Sensors , check engine light
05-24-2006, 04:08 AM
#1
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02 Sensors , check engine light
After installing my X pipe the check engine light is on and it is reading "bank 2 too lean" well had the car tuned and the light went off for about 50 miles then it came back on again.......then i just turned it off with the predator tuner, it stayed off for about 30-40 miles then it came back on, it is becomming an everyday thing.....how can i turn these off for good
05-24-2006, 04:45 PM
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RE: 02 Sensors , check engine light
yup it always comes out the same code "OBDII bank 2 too lean" i turn in off it comes back on 40 miles or so later. like i said i had the car dyno tuned and it was off for like 50 or 60 miles .........when it comes on it does so when i start the car up or if its under heavy acceleration
05-24-2006, 06:34 PM
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RE: 02 Sensors , check engine light
that could be, but even if it was shouldnt the diablo sport be able to turn it off anyway? its the downstream bank 2 sensor so its the one after the cats . Should i just invest in a set of the elimninaors like they use on the 04's. I need the light off for the car to pass inspection.
05-24-2006, 06:46 PM
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RE: 02 Sensors , check engine light
if the tuner cant keep it off then MILS sure as hell wont keep it off. They suck. I find it odd that its the after-cat 02 sensor. only thing 02 sensors after-cat do is make sure the cats are working. The 02 sensors before the cats check the a/f ratio... or atleast i think they do. Are you sure bank 2 isn't passenger side before-cat 02 sensor or something?
05-24-2006, 07:02 PM
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RE: 02 Sensors , check engine light
nope its the bank 2 "downstream" , it all started when i had the X pipe installed. Then i figured i would get it dyno tuned and the light was off for about 60 miles then it came on. then i turned it off with the tuner , but it keeps comming back on every 30 or 40 miles bu usually when i start it up or under heavy acceleration like i said. Is there anything else on my tuner i could do to turn it off there are like 4 options uder the OBDII catagory
05-24-2006, 07:04 PM
#9
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RE: 02 Sensors , check engine light
could the MAC cai have something to do with it. The guy at the shop said the MAC straight shot i have is a piece of crap and they have had several problems with them and that the pipe is too wide for the MAS or something
05-24-2006, 07:11 PM
#10
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RE: 02 Sensors , check engine light
What specifically did you turn off on the predator?.. you have to turn more then one thing off to actually turn off the o2 sensors..this is what is in the manual...
To Set OBD-II setting for no rear 02’s -Turn all of the following parameters to “OFF” position: OBD-II MIL / OBD-II Test Heater bank 1 downstream / Heater bank 2 downstream O2 Sensor Config.
O2 Config = Turn this off for no rear O2 sensors, this tells PCM that no rear O2 sensors exist, the heater 1 and 2 have to be turned off as well.
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To Set OBD-II setting for no rear 02’s -Turn all of the following parameters to “OFF” position: OBD-II MIL / OBD-II Test Heater bank 1 downstream / Heater bank 2 downstream O2 Sensor Config.
O2 Config = Turn this off for no rear O2 sensors, this tells PCM that no rear O2 sensors exist, the heater 1 and 2 have to be turned off as well.
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