installed new O2 sensors..do i need to reset computer?
08-23-2011, 12:05 PM
#1
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Year: 2000
Model: Cherokee
Engine: Inline 6
installed new O2 sensors..do i need to reset computer?
i put 2 new upstream bosch o2 sensors in. anything else i need to do? not sure if im suppose to reset the computer
08-23-2011, 09:02 PM
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Year: 1994
Model: Cherokee
Engine: 5.2
I would reset it by unhookin battery. I dont know if you have to, but if your check engine light is on for these codes, I would. Whats your reason for replacing, do you have emissions coming up soon?
It will take a while for the readiness monitors to reset, so dont expecet it to pass the next day for emissions.
It will take a while for the readiness monitors to reset, so dont expecet it to pass the next day for emissions.
08-23-2011, 09:22 PM
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Is your check engine lamp on still?
The ECM tests the O2's every "drive cycle." Once it sees them operating properly it should clear itself.
Go for a couple easy joy rides, or see if your local AZ or Advance will clear it for you.
The ECM tests the O2's every "drive cycle." Once it sees them operating properly it should clear itself.
Go for a couple easy joy rides, or see if your local AZ or Advance will clear it for you.
08-24-2011, 07:39 PM
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Year: 1994
Model: Cherokee
Engine: 5.2
To the last poster, a drive cycle is alot more complicated then that. I had good luck with chrysler by putting it in drive, and just sitting there at idle for about 10 min to reset o2 monitors, all cars are diffrent. Did one the other day that was a crazy drive cycle... Example go 0-55 in 25 sec, hold for 2:30 seconds, decelerate to 0 taking 30 seconds, ect ect went on about 5 more times, with diffrent intervals each time..
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