O2 Sensor
10-14-2006, 10:23 PM
#1
O2 Sensor
its been a month since i put on my mac o/r h-pipe and today my check engine light came on. at first i thought damn mil's failed but when i looked under the carthe zip ties i put on had gotten loose and the passenger rear O2 sensor got dragged across the ground and damaged. well i unhooked my battery for a couple of minutes and the check engine light has gone away but im wondering what will a damaged rear O2 sensor do to the performance of the car and will it have any effect of gas mileage?
-Archemy
-Archemy
10-15-2006, 01:24 AM
#4
5th Gear Member
Join Date: Jan 2006
Posts: 2,504
RE: O2 Sensor
wait a minute, your o2 sensor fell out? anyway, the main purpose of the rear sensors is to monitor the efficiency of the cats and let you know if they're not working properly via the CEL. only the fronts control how the engine runs, believe it or not i've been driving around without mils for almost a year and my car runs fine
10-15-2006, 01:27 AM
#5
4th Gear Member
Join Date: Jun 2006
Location: macomb
Posts: 1,777
RE: O2 Sensor
you said you have mils. just plug the o2 sensor back in and dont worry about it. the mils send a resistance so that it tricks the comp that they are working right. so even with bad o2 sensors you will be fine with mils. so dont worry bout it
10-15-2006, 01:29 AM
#6
4th Gear Member
Join Date: Feb 2004
Location:
Posts: 1,895
RE: O2 Sensor
my car tripped the cel because of an o/r x pipe and it runs like ****. I have to keep unhooking the battery to turn the light off until I can get my hands on a tuner. My mils didnt work. The car runs great until the cel comes on, then it idles really rough and stalls sometimes, until I unhook the battery and start all over again. The rear O2s on my car definately effect its performance.
10-15-2006, 02:26 AM
#8
RE: O2 Sensor
well it definately was running fine when the light came on. i just wanted to make sure they wouldnt effect performance, the mils are working fine its the O2 sensor itself that is messed up. i can live with the CEL on until i can get a new O2 sensor.
10-15-2006, 01:27 PM
#10
4th Gear Member
Join Date: Sep 2006
Location: TAXO
Posts: 1,803
RE: O2 Sensor
ORIGINAL: Mark99GT
my car tripped the cel because of an o/r x pipe and it runs like ****. I have to keep unhooking the battery to turn the light off until I can get my hands on a tuner. My mils didnt work. The car runs great until the cel comes on, then it idles really rough and stalls sometimes, until I unhook the battery and start all over again. The rear O2s on my car definately effect its performance.
my car tripped the cel because of an o/r x pipe and it runs like ****. I have to keep unhooking the battery to turn the light off until I can get my hands on a tuner. My mils didnt work. The car runs great until the cel comes on, then it idles really rough and stalls sometimes, until I unhook the battery and start all over again. The rear O2s on my car definately effect its performance.